Travis config update, remove branch aliases

.travis.yml

@@ -1,23 +1,26 @@
 language: php
 
-dist: trusty
+dist: xenial
+
+services:
+  - mysql
+  - postgresql
+
 
 env:
   global:
-    - COMPOSER_ROOT_VERSION=5.0.x-dev
+    - COMPOSER_ROOT_VERSION=5.x-dev
 
 matrix:
   include:
-    - php: 5.6
-      env: DB=MYSQL RECIPE_VERSION=4.3.x-dev PHPCS_TEST=1 PHPUNIT_TEST=1
-    - php: 7.0
-      env: DB=MYSQL RECIPE_VERSION=4.3.x-dev PHPUNIT_TEST=1
     - php: 7.1
-      env: DB=MYSQL RECIPE_VERSION=4.3.x-dev PHPUNIT_COVERAGE_TEST=1
+      env: DB=MYSQL PHPUNIT_TEST=1
+    - php: 7.1
+      env: DB=PGSQL PHPUNIT_TEST=1
     - php: 7.2
-      env: DB=PGSQL RECIPE_VERSION=4.4.x-dev PHPUNIT_TEST=1
+      env: DB=MYSQL PHPUNIT_TEST=1 PHPCS_TEST=1
     - php: 7.3
-      env: DB=MYSQL RECIPE_VERSION=4.x-dev PHPUNIT_TEST=1
+      env: DB=MYSQL PHPUNIT_COVERAGE_TEST=1
 
 before_script:
   # Init PHP
@@ -27,14 +30,14 @@ before_script:
 
   # Install composer dependencies
   - composer validate
-  - composer require --no-update silverstripe/recipe-cms:$RECIPE_VERSION
-  - if [[ $DB == PGSQL ]]; then composer require --no-update silverstripe/postgresql:2.2.x-dev; fi
-  - composer install --prefer-dist --no-interaction --no-progress --no-suggest --optimize-autoloader --verbose --profile
+  - composer require --no-update silverstripe/recipe-cms:^4
+  - if [[ $DB == PGSQL ]]; then composer require --no-update silverstripe/postgresql:^2; fi
+  - composer install --prefer-source --no-interaction --no-progress --no-suggest --optimize-autoloader --verbose --profile
 
 script:
+  - if [[ $PHPCS_TEST ]]; then vendor/bin/phpcs code/ tests/; fi
   - if [[ $PHPUNIT_TEST ]]; then vendor/bin/phpunit; fi
   - if [[ $PHPUNIT_COVERAGE_TEST ]]; then phpdbg -qrr vendor/bin/phpunit --coverage-clover=coverage.xml -vvv; fi
-  - if [[ $PHPCS_TEST ]]; then vendor/bin/phpcs code/ tests/; fi
 
 after_success:
   - if [[ $PHPUNIT_COVERAGE_TEST ]]; then bash <(curl -s https://codecov.io/bash) -f coverage.xml; fi

composer.json

@@ -50,9 +50,6 @@
         "silverstripe/gridfieldqueuedexport": "Export large submission as CSV through queued jobs in the background"
     },
     "extra": {
-        "branch-alias": {
-            "dev-master": "5.x-dev"
-        },
         "expose": [
             "client/dist",
             "client/lang",