diff --git a/.editorconfig b/.editorconfig
index 47ae637b..3dfb23c7 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -10,8 +10,9 @@ indent_style = space
 insert_final_newline = true
 trim_trailing_whitespace = true
 
-[{*.yml,package.json}]
+[*.{yml,js,json,css,scss,eslintrc}]
 indent_size = 2
+indent_style = space
 
 # The indent size used in the package.json file cannot be changed:
 # https://github.com/npm/npm/pull/3180#issuecomment-16336516
diff --git a/.upgrade.yml b/.upgrade.yml
new file mode 100644
index 00000000..6432d7c0
--- /dev/null
+++ b/.upgrade.yml
@@ -0,0 +1,6 @@
+mappings:
+  SS_Report: SilverStripe\Reports\SS_Report
+  SS_ReportWrapper: SilverStripe\Reports\SS_ReportWrapper
+  ReportAdmin: SilverStripe\Reports\ReportAdmin
+  SideReportView: SilverStripe\Reports\SideReportView
+  SideReportWrapper: SilverStripe\Reports\SideReportWrapper
diff --git a/code/Report.php b/code/Report.php
index e5bedd9a..b43905f3 100644
--- a/code/Report.php
+++ b/code/Report.php
@@ -1,9 +1,28 @@
 <?php
 
+namespace SilverStripe\Reports;
+
 use SilverStripe\ORM\ArrayList;
 use SilverStripe\ORM\SS_List;
 use SilverStripe\Security\Member;
 use SilverStripe\Security\Permission;
+use SilverStripe\Control\Controller;
+use SilverStripe\Core\ClassInfo;
+use SilverStripe\Forms\FieldList;
+use SilverStripe\Forms\LiteralField;
+use SilverStripe\Forms\FormAction;
+use SilverStripe\Forms\GridField\GridFieldConfig;
+use SilverStripe\Forms\GridField\GridFieldButtonRow;
+use SilverStripe\Forms\GridField\GridFieldPrintButton;
+use SilverStripe\Forms\GridField\GridFieldExportButton;
+use SilverStripe\Forms\GridField\GridFieldToolbarHeader;
+use SilverStripe\Forms\GridField\GridFieldSortableHeader;
+use SilverStripe\Forms\GridField\GridFieldDataColumns;
+use SilverStripe\Forms\GridField\GridFieldPaginator;
+use SilverStripe\Forms\GridField\GridField;
+use SilverStripe\Core\Convert;
+use SilverStripe\View\ViewableData;
+use ReflectionClass;
 
 /**
  * Base "abstract" class creating reports on your data.
@@ -32,8 +51,6 @@ use SilverStripe\Security\Permission;
  *
  * Right now, all subclasses of SS_Report will be shown in the ReportAdmin. In SS3 there is only
  * one place where reports can go, so this class is greatly simplifed from its version in SS2.
- *
- * @package reports
  */
 class SS_Report extends ViewableData
 {
@@ -71,9 +88,9 @@ class SS_Report extends ViewableData
      * @var array
      */
     public static $excluded_reports = array(
-        'SS_Report',
-        'SS_ReportWrapper',
-        'SideReportWrapper',
+        'SilverStripe\\Reports\\SS_Report',
+        'SilverStripe\\Reports\\SS_ReportWrapper',
+        'SilverStripe\\Reports\\SideReportWrapper',
     );
 
     /**
@@ -325,7 +342,7 @@ class SS_Report extends ViewableData
             new GridFieldPaginator()
         );
         $gridField = new GridField('Report', null, $items, $gridFieldConfig);
-        $columns = $gridField->getConfig()->getComponentByType('GridFieldDataColumns');
+        $columns = $gridField->getConfig()->getComponentByType('SilverStripe\\Forms\\GridField\\GridFieldDataColumns');
         $displayFields = array();
         $fieldCasting = array();
         $fieldFormatting = array();
@@ -426,121 +443,3 @@ class SS_Report extends ViewableData
         return $this->title();
     }
 }
-
-/**
- * SS_ReportWrapper is a base class for creating report wappers.
- *
- * Wrappers encapsulate an existing report to alter their behaviour - they are implementations of
- * the standard GoF decorator pattern.
- *
- * This base class ensure that, by default, wrappers behave in the same way as the report that is
- * being wrapped.  You should override any methods that need to behave differently in your subclass
- * of SS_ReportWrapper.
- *
- * It also makes calls to 2 empty methods that you can override {@link beforeQuery()} and
- * {@link afterQuery()}
- *
- * @package reports
- */
-abstract class SS_ReportWrapper extends SS_Report
-{
-    protected $baseReport;
-
-    public function __construct($baseReport)
-    {
-        $this->baseReport = is_string($baseReport) ? new $baseReport : $baseReport;
-        $this->dataClass = $this->baseReport->dataClass();
-        parent::__construct();
-    }
-
-    public function ID()
-    {
-        return get_class($this->baseReport) . '_' . get_class($this);
-    }
-
-    ///////////////////////////////////////////////////////////////////////////////////////////
-    // Filtering
-
-    public function parameterFields()
-    {
-        return $this->baseReport->parameterFields();
-    }
-
-    ///////////////////////////////////////////////////////////////////////////////////////////
-    // Columns
-
-    public function columns()
-    {
-        return $this->baseReport->columns();
-    }
-
-    ///////////////////////////////////////////////////////////////////////////////////////////
-    // Querying
-
-    /**
-     * Override this method to perform some actions prior to querying.
-     */
-    public function beforeQuery($params)
-    {
-    }
-
-    /**
-     * Override this method to perform some actions after querying.
-     */
-    public function afterQuery()
-    {
-    }
-
-    public function sourceQuery($params)
-    {
-        if ($this->baseReport->hasMethod('sourceRecords')) {
-            // The default implementation will create a fake query from our sourceRecords() method
-            return parent::sourceQuery($params);
-        } elseif ($this->baseReport->hasMethod('sourceQuery')) {
-            $this->beforeQuery($params);
-            $query = $this->baseReport->sourceQuery($params);
-            $this->afterQuery();
-            return $query;
-        } else {
-            user_error("Please override sourceQuery()/sourceRecords() and columns() in your base report", E_USER_ERROR);
-        }
-    }
-
-    public function sourceRecords($params = array(), $sort = null, $limit = null)
-    {
-        $this->beforeQuery($params);
-        $records = $this->baseReport->sourceRecords($params, $sort, $limit);
-        $this->afterQuery();
-        return $records;
-    }
-
-
-    ///////////////////////////////////////////////////////////////////////////////////////////
-    // Pass-through
-
-    public function title()
-    {
-        return $this->baseReport->title();
-    }
-
-    public function group()
-    {
-        /** @skipUpgrade */
-        return $this->baseReport->hasMethod('group') ? $this->baseReport->group() : 'Group';
-    }
-
-    public function sort()
-    {
-        return $this->baseReport->hasMethod('sort') ? $this->baseReport->sort() : 0;
-    }
-
-    public function description()
-    {
-        return $this->baseReport->description();
-    }
-
-    public function canView($member = null)
-    {
-        return $this->baseReport->canView($member);
-    }
-}
diff --git a/code/ReportAdmin.php b/code/ReportAdmin.php
index 9f5267ad..e533dd05 100644
--- a/code/ReportAdmin.php
+++ b/code/ReportAdmin.php
@@ -1,10 +1,25 @@
 <?php
 
+namespace SilverStripe\Reports;
+
+use SilverStripe\Admin\LeftAndMain;
+use SilverStripe\Control\Controller;
+use SilverStripe\Forms\FieldList;
+use SilverStripe\Forms\Form;
+use SilverStripe\Forms\GridField\GridFieldConfig;
+use SilverStripe\Forms\GridField\GridFieldToolbarHeader;
+use SilverStripe\Forms\GridField\GridFieldSortableHeader;
+use SilverStripe\Forms\GridField\GridFieldDataColumns;
+use SilverStripe\Forms\GridField\GridFieldFooter;
+use SilverStripe\Forms\GridField\GridField;
+use SilverStripe\Forms\HTMLEditor\HTMLEditorConfig;
+use SilverStripe\i18n\i18n;
 use SilverStripe\ORM\ArrayList;
 use SilverStripe\ORM\SS_List;
 use SilverStripe\Security\Member;
 use SilverStripe\Security\PermissionProvider;
-use SilverStripe\Admin\LeftAndMain;
+use SilverStripe\View\ArrayData;
+use SilverStripe\View\Requirements;
 
 /**
  * Reports section of the CMS.
@@ -12,10 +27,6 @@ use SilverStripe\Admin\LeftAndMain;
  * All reports that should show in the ReportAdmin section
  * of the CMS need to subclass {@link SS_Report}, and implement
  * the appropriate methods and variables that are required.
- *
- * @see SS_Report
- *
- * @package reports
  */
 class ReportAdmin extends LeftAndMain implements PermissionProvider
 {
@@ -25,7 +36,7 @@ class ReportAdmin extends LeftAndMain implements PermissionProvider
 
     private static $template_path = null; // defaults to (project)/templates/email
 
-    private static $tree_class = 'SS_Report';
+    private static $tree_class = 'SilverStripe\\Reports\\SS_Report';
 
     private static $url_handlers = array(
         'show/$ReportClass/$Action' => 'handleAction'
@@ -160,7 +171,7 @@ class ReportAdmin extends LeftAndMain implements PermissionProvider
 
         // The root element should explicitly point to the root node.
         // Uses session state for current record otherwise.
-        $items[0]->Link = singleton('ReportAdmin')->Link();
+        $items[0]->Link = singleton('SilverStripe\\Reports\\ReportAdmin')->Link();
 
         if ($this->reportObject) {
             //build breadcrumb trail to the current report
@@ -217,7 +228,7 @@ class ReportAdmin extends LeftAndMain implements PermissionProvider
             );
             $gridField = new GridField('Reports', false, $this->Reports(), $gridFieldConfig);
             /** @var GridFieldDataColumns $columns */
-            $columns = $gridField->getConfig()->getComponentByType('GridFieldDataColumns');
+            $columns = $gridField->getConfig()->getComponentByType('SilverStripe\\Forms\\GridField\\GridFieldDataColumns');
             $columns->setDisplayFields(array(
                 'title' => _t('ReportAdmin.ReportTitle', 'Title'),
             ));
diff --git a/code/SS_ReportWrapper.php b/code/SS_ReportWrapper.php
new file mode 100644
index 00000000..cd2cc930
--- /dev/null
+++ b/code/SS_ReportWrapper.php
@@ -0,0 +1,119 @@
+<?php
+
+namespace SilverStripe\Reports;
+
+/**
+ * SS_ReportWrapper is a base class for creating report wappers.
+ *
+ * Wrappers encapsulate an existing report to alter their behaviour - they are implementations of
+ * the standard GoF decorator pattern.
+ *
+ * This base class ensure that, by default, wrappers behave in the same way as the report that is
+ * being wrapped.  You should override any methods that need to behave differently in your subclass
+ * of SS_ReportWrapper.
+ *
+ * It also makes calls to 2 empty methods that you can override {@link beforeQuery()} and
+ * {@link afterQuery()}
+ */
+abstract class SS_ReportWrapper extends SS_Report
+{
+    protected $baseReport;
+
+    public function __construct($baseReport)
+    {
+        $this->baseReport = is_string($baseReport) ? new $baseReport : $baseReport;
+        $this->dataClass = $this->baseReport->dataClass();
+        parent::__construct();
+    }
+
+    public function ID()
+    {
+        return get_class($this->baseReport) . '_' . get_class($this);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////////////////////
+    // Filtering
+
+    public function parameterFields()
+    {
+        return $this->baseReport->parameterFields();
+    }
+
+    ///////////////////////////////////////////////////////////////////////////////////////////
+    // Columns
+
+    public function columns()
+    {
+        return $this->baseReport->columns();
+    }
+
+    ///////////////////////////////////////////////////////////////////////////////////////////
+    // Querying
+
+    /**
+     * Override this method to perform some actions prior to querying.
+     */
+    public function beforeQuery($params)
+    {
+    }
+
+    /**
+     * Override this method to perform some actions after querying.
+     */
+    public function afterQuery()
+    {
+    }
+
+    public function sourceQuery($params)
+    {
+        if ($this->baseReport->hasMethod('sourceRecords')) {
+            // The default implementation will create a fake query from our sourceRecords() method
+            return parent::sourceQuery($params);
+        } elseif ($this->baseReport->hasMethod('sourceQuery')) {
+            $this->beforeQuery($params);
+            $query = $this->baseReport->sourceQuery($params);
+            $this->afterQuery();
+            return $query;
+        } else {
+            user_error("Please override sourceQuery()/sourceRecords() and columns() in your base report", E_USER_ERROR);
+        }
+    }
+
+    public function sourceRecords($params = array(), $sort = null, $limit = null)
+    {
+        $this->beforeQuery($params);
+        $records = $this->baseReport->sourceRecords($params, $sort, $limit);
+        $this->afterQuery();
+        return $records;
+    }
+
+
+    ///////////////////////////////////////////////////////////////////////////////////////////
+    // Pass-through
+
+    public function title()
+    {
+        return $this->baseReport->title();
+    }
+
+    public function group()
+    {
+        /** @skipUpgrade */
+        return $this->baseReport->hasMethod('group') ? $this->baseReport->group() : 'Group';
+    }
+
+    public function sort()
+    {
+        return $this->baseReport->hasMethod('sort') ? $this->baseReport->sort() : 0;
+    }
+
+    public function description()
+    {
+        return $this->baseReport->description();
+    }
+
+    public function canView($member = null)
+    {
+        return $this->baseReport->canView($member);
+    }
+}
diff --git a/code/SideReport.php b/code/SideReport.php
index 72fee965..f9394958 100644
--- a/code/SideReport.php
+++ b/code/SideReport.php
@@ -1,46 +1,50 @@
 <?php
 
+namespace SilverStripe\Reports;
+
+use TableListField;
+use SilverStripe\Core\Convert;
+use SilverStripe\View\ViewableData;
+
 /**
  * Renderer for showing SideReports in CMSMain
- * 
- * @package reports
  */
 class SideReportView extends ViewableData
 {
 
     protected $controller, $report;
     protected $parameters;
-    
+
     public function __construct($controller, $report)
     {
         $this->controller = $controller;
         $this->report = $report;
         parent::__construct();
     }
-    
+
     public function group()
     {
         return _t('SideReport.OtherGroupTitle', "Other");
     }
-    
+
     public function sort()
     {
         return 0;
     }
-    
+
     public function setParameters($parameters)
     {
         $this->parameters = $parameters;
     }
-    
+
     public function forTemplate()
     {
         $records = $this->report->records($this->parameters);
         $columns = $this->report->columns();
-        
+
         if ($records && $records->Count()) {
             $result = "<ul class=\"$this->class\">\n";
-            
+
             foreach ($records as $record) {
                 $result .= "<li>\n";
                 foreach ($columns as $source => $info) {
@@ -63,7 +67,7 @@ class SideReportView extends ViewableData
         }
         return $result;
     }
-    
+
     protected function formatValue($record, $source, $info)
     {
         // Field sources
@@ -78,7 +82,7 @@ class SideReportView extends ViewableData
         if (!empty($info['casting'])) {
             $val = TableListField::getCastedValue($val, $info['casting']);
         }
-        
+
         // Formatting, a la TableListField
         if (!empty($info['formatting'])) {
             $format = str_replace('$value', "__VAL__", $info['formatting']);
@@ -89,13 +93,13 @@ class SideReportView extends ViewableData
 
         $prefix = empty($info['newline']) ? "" : "<br>";
 
-        
+
         $classClause = "";
         if (isset($info['title'])) {
             $cssClass = preg_replace('/[^A-Za-z0-9]+/', '', $info['title']);
             $classClause = "class=\"$cssClass\"";
         }
-        
+
         if (isset($info['link']) && $info['link']) {
             $link = ($info['link'] === true && $record->hasMethod('CMSEditLink'))
                 ? $record->CMSEditLink()
@@ -106,22 +110,3 @@ class SideReportView extends ViewableData
         }
     }
 }
-
-/**
- * A report wrapper that makes it easier to define slightly different behaviour for side-reports.
- * 
- * This report wrapper will use sideReportColumns() for the report columns, instead of columns().
- * 
- * @package reports
- */
-class SideReportWrapper extends SS_ReportWrapper
-{
-    public function columns()
-    {
-        if ($this->baseReport->hasMethod('sideReportColumns')) {
-            return $this->baseReport->sideReportColumns();
-        } else {
-            return parent::columns();
-        }
-    }
-}
diff --git a/code/SideReportWrapper.php b/code/SideReportWrapper.php
new file mode 100644
index 00000000..c6f54b0d
--- /dev/null
+++ b/code/SideReportWrapper.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace SilverStripe\Reports;
+
+/**
+ * A report wrapper that makes it easier to define slightly different behaviour for side-reports.
+ *
+ * This report wrapper will use sideReportColumns() for the report columns, instead of columns().
+ */
+class SideReportWrapper extends SS_ReportWrapper
+{
+    public function columns()
+    {
+        if ($this->baseReport->hasMethod('sideReportColumns')) {
+            return $this->baseReport->sideReportColumns();
+        } else {
+            return parent::columns();
+        }
+    }
+}
diff --git a/composer.json b/composer.json
index 52a139b6..2f70ac76 100644
--- a/composer.json
+++ b/composer.json
@@ -1,29 +1,34 @@
 {
-	"name": "silverstripe/reports",
-	"type": "silverstripe-module",
-	"description": "Reports module for SilverStripe CMS",
-	"homepage": "http://silverstripe.org",
-	"license": "BSD-3-Clause",
-	"keywords": ["silverstripe", "cms", "reports"],
-	"authors": [
-		{
-			"name": "SilverStripe",
-			"homepage": "http://silverstripe.com"
-		},
-		{
-			"name": "The SilverStripe Community",
-			"homepage": "http://silverstripe.org"
-		}
-	],
-	"require": {
-		"silverstripe/framework": "^4.0"
-	},
-	"extra": {
-		"branch-alias": {
-			"dev-master": "4.0.x-dev"
-		}
-	},
-	"require-dev": {
-		"phpunit/PHPUnit": "~4.8"
-	}
+  "name": "silverstripe/reports",
+  "type": "silverstripe-module",
+  "description": "Reports module for SilverStripe CMS",
+  "homepage": "http://silverstripe.org",
+  "license": "BSD-3-Clause",
+  "keywords": ["silverstripe", "cms", "reports"],
+  "authors": [
+    {
+      "name": "SilverStripe",
+      "homepage": "http://silverstripe.com"
+    },
+    {
+      "name": "The SilverStripe Community",
+      "homepage": "http://silverstripe.org"
+    }
+  ],
+  "require": {
+    "silverstripe/framework": "^4.0"
+  },
+  "extra": {
+    "branch-alias": {
+      "dev-master": "4.0.x-dev"
+    }
+  },
+  "autoload": {
+    "psr-4": {
+      "SilverStripe\\Reports\\": "code/"
+    }
+  },
+  "require-dev": {
+    "phpunit/PHPUnit": "~4.8"
+  }
 }
diff --git a/templates/ReportAdminForm.ss b/templates/ReportAdminForm.ss
deleted file mode 100644
index e239fe76..00000000
--- a/templates/ReportAdminForm.ss
+++ /dev/null
@@ -1,41 +0,0 @@
-<form $FormAttributes>
-
-
-	<p style="display: none;" class="message " id="Form_EditForm_error"/>
-
-
-		<div id="ScrollPanel">
-		<fieldset>
-			$FieldMap.ReportTitle.FieldHolder
-			$FieldMap.ReportDescription.FieldHolder
-
-			<% if $FieldMap.Filters.Children %>
-				<h4><% _t('ReportAdminForm.FILTERBY', 'Filter by') %></h4>
-
-				<div class="filters">
-					<% loop $FieldMap.Filters %>
-						<% loop $Children %>
-							$FieldHolder
-						<% end_loop %>
-					<% end_loop %>
-				</div>
-
-				<div id="action_updatereport">
-					<% if $FieldMap.action_updatereport %>
-						$FieldMap.action_updatereport.Field
-					<% end_if %>
-				</div>
-
-				<div style="clear: both">&nbsp;</div>
-			<% end_if %>
-
-			$FieldMap.ReportContent.FieldHolder
-
-			<% loop $HiddenFields %>$Field<% end_loop %>
-
-			</fieldset>
-		</div>
-
-
-		<div class="clear"><!-- --></div>
-</form>
\ No newline at end of file
diff --git a/templates/Includes/ReportAdmin_Content.ss b/templates/SilverStripe/Reports/Includes/ReportAdmin_Content.ss
similarity index 100%
rename from templates/Includes/ReportAdmin_Content.ss
rename to templates/SilverStripe/Reports/Includes/ReportAdmin_Content.ss
diff --git a/templates/Includes/ReportAdmin_Tools.ss b/templates/SilverStripe/Reports/Includes/ReportAdmin_Tools.ss
similarity index 100%
rename from templates/Includes/ReportAdmin_Tools.ss
rename to templates/SilverStripe/Reports/Includes/ReportAdmin_Tools.ss
diff --git a/tests/ReportTest.php b/tests/ReportTest.php
index f9c2f1e0..69ff6a8a 100644
--- a/tests/ReportTest.php
+++ b/tests/ReportTest.php
@@ -1,6 +1,11 @@
 <?php
 
 use SilverStripe\ORM\ArrayList;
+use SilverStripe\Reports\SS_Report;
+use SilverStripe\Control\Session;
+use SilverStripe\Dev\SapphireTest;
+use SilverStripe\Dev\TestOnly;
+
 
 /**
  * @package reports