* WIP GridField action menu work, the gist of the idea is using a new gridfield component
* Add delete action to actions menu
* Actions are added automatically to action menu (allows for extension)
* Add test and minor changes
* Add docs and minor changes
* Refactor ActionMenuItem into distinct types, general ActionMenu cleanup
* Add icons and fix title
* Pass columnName, so it can be used by components
* Update test to open and find action menu buttons
* Add section in changelog upgrade section for GridField_ActionMenu
API Substitute Zend_Locale with Locale / NumberFormatter
API Substitute Zend_Date with IntlDateFormatter
API Added DBTIme::Nice12, FormatFromSettings
API Added Short() method to DBDate / DBTime / DBDatetime
API Add Date::getTimestamp()
API Added setSubmittedValue api for FormField
API Add second arg to base FormField::setValue()
API Major refactor of i18n into component data parts
API Implement Resettable interface to reset objects between tests
ENHANCEMENT Changed DBField::create_field return type to `static` to support better type hinting
ENHANCEMENT i18nTextCollector supports __CLASS__
* API Replace existing Email and Mailer classes with SwiftMailer powered email system
* DOCS New Email docs
* Initial feedback from Damian
* Making Mailer an interface
* Templates relocated
* Round of feedback
* More robust approach to plain parts
* Revert changes to TestMailer
Enhancement add accessibility info to page number
Enhancement new font icons added, improve trash icon and increase icon size of close
Enhancement improve title of gridfield search trigger
Enhancement add title to button to open gridfield search and improve gridfield search styles
API Shortcode fails if no parent
API JQuery-UI classes removed
Enhancement centre actions tabs within dropup in more-actions
Enhancement fix IE input height issue and fix for safari of icons in buttons with hidden text (e.g. pagination)
Enhancement only show external link on hover
Enhancement remove float from buttons as already aligned inline
Enhancement Align buttons in toolbar more consistently
API remove ui overrides
API ss-ui-button no longer exists so styles where not seen, removed nesting
Enhancement Tidy up permission icons to new icon library
WIP The modal is a short term workaround until the UI is all react based but we wanted to do some cleanup prior to 4 release
API Remove ssui.button
Enhancement Update buttons to new flat bootstrap style
* Panel/tab-panel and alerts spacing, button padding consistency and alignment
* Reports panel spacing adjustments
* ReportAdmin panel and toolbar spacing
* Comment change
* Fix formatting help toggle link
* Use standard line-heights and padding for buttons
* Add base panel styles
* Update to .panel styles and .toolbar spacing
* Remove legacy styles, linting fixes
* Toolbar--content to have consistent styles throughout
* Add panel and toolbar styles to areas missing them
* Replace values with variables
* Layout overrides for tabs and panels with padding
* Adjust JQueryUI button spacing to match other UI buttons
* Remove custom ReportAdmin styles
Update values to variables and modify panel and tab-panel spacing
* Remove text color override
* Remove double (.m-t-1) spacing from campaign panel
* Profile page remove legacy JLayout
* Remove legacy spacing
* Removed Layout from page so !important not needed
* Improve use of variables
* Add missing closing bracket, minor linting fixes
* Linting fixes
* Remove css importants
* Add temp fix for file upload within gridfield
Tidy structure of css
* css build
* Spacing bug fixed for campaign list alert
