Travis config update, remove branch aliases

.travis.yml

@@ -1,16 +1,24 @@
 language: php
 
+dist: xenial
+
+services:
+  - mysql
+  - postgresql
+
 env:
   global:
-    - COMPOSER_ROOT_VERSION="4.0.x-dev"
+    - COMPOSER_ROOT_VERSION="4.x-dev"
 
 matrix:
   include:
-    - php: 5.6
-      env: DB=MYSQL PHPCS_TEST=1 PHPUNIT_TEST=1
-    - php: 7.0
-      env: DB=PGSQL PHPUNIT_TEST=1
     - php: 7.1
+      env: DB=MYSQL PHPUNIT_TEST=1
+    - php: 7.1
+      env: DB=PGSQL PHPUNIT_TEST=1
+    - php: 7.2
+      env: DB=MYSQL PHPUNIT_TEST=1 PHPCS_TEST=1
+    - php: 7.3
       env: DB=MYSQL PHPUNIT_COVERAGE_TEST=1
 
 before_script:
@@ -18,9 +26,9 @@ before_script:
   - phpenv config-rm xdebug.ini
 
   - composer validate
-  - composer require --no-update silverstripe/recipe-cms:1.0.x-dev silverstripe/userforms:5.0.x-dev
+  - composer require --no-update silverstripe/recipe-cms:^4 silverstripe/userforms:^5
-  - if [[ $DB == PGSQL ]]; then composer require --no-update silverstripe/postgresql:2.0.x-dev; fi
+  - if [[ $DB == PGSQL ]]; then composer require --no-update silverstripe/postgresql:^2; fi
-  - composer install --prefer-dist --no-interaction --no-progress --no-suggest --optimize-autoloader --verbose --profile
+  - composer install --prefer-source --no-interaction --no-progress --no-suggest --optimize-autoloader --verbose --profile
 
 script:
   - if [[ $PHPUNIT_TEST ]]; then vendor/bin/phpunit; fi

composer.json

@@ -21,10 +21,7 @@
     "extra": {
         "expose": [
             "images"
-        ],
+        ]
-        "branch-alias": {
-            "dev-master": "3.x-dev"
-        }
     },
     "autoload": {
         "psr-4": {