Updated Travis CI configuraiton

- removed allow_failures on PHP 7.2
- updated install process with legacy deps

.travis.yml

@@ -2,11 +2,6 @@ sudo: false
 
 language: php
 
-branches:
-  except:
-    - /^release-.*$/
-    - /^ghgfk-.*$/
-
 cache:
   directories:
     - $HOME/.composer/cache
@@ -15,7 +10,6 @@ env:
   global:
     - COMPOSER_ARGS="--no-interaction"
     - COVERAGE_DEPS="php-coveralls/php-coveralls"
-    - LEGACY_DEPS="phpunit/phpunit"
 
 matrix:
   include:
@@ -25,7 +19,7 @@ matrix:
     - php: 5.6
       env:
         - DEPS=locked
-        - TEST_COVERAGE=true
+        - LEGACY_DEPS="phpunit/phpunit"
     - php: 5.6
       env:
         - DEPS=latest
@@ -35,7 +29,7 @@ matrix:
     - php: 7
       env:
         - DEPS=locked
-        - CS_CHECK=true
+        - LEGACY_DEPS="phpunit/phpunit"
     - php: 7
       env:
         - DEPS=latest
@@ -45,6 +39,8 @@ matrix:
     - php: 7.1
       env:
         - DEPS=locked
+        - CS_CHECK=true
+        - TEST_COVERAGE=true
     - php: 7.1
       env:
         - DEPS=latest
@@ -57,16 +53,13 @@ matrix:
     - php: 7.2
       env:
         - DEPS=latest
-  allow_failures:
-    - php: 7.2
 
 before_install:
-  - if [[ $TEST_COVERAGE != 'true' && "$(php --version | grep xdebug -ci)" -ge 1 ]]; then phpenv config-rm xdebug.ini || return 0 ; fi
-  - travis_retry composer self-update
+  - if [[ $TEST_COVERAGE != 'true' ]]; then phpenv config-rm xdebug.ini || return 0 ; fi
 
 install:
   - travis_retry composer install $COMPOSER_ARGS --ignore-platform-reqs
-  - if [[ $TRAVIS_PHP_VERSION =~ ^5.6 ]]; then travis_retry composer update $COMPOSER_ARGS --with-dependencies $LEGACY_DEPS ; fi
+  - if [[ $LEGACY_DEPS != '' ]]; then travis_retry composer update $COMPOSER_ARGS --with-dependencies $LEGACY_DEPS ; fi
   - if [[ $DEPS == 'latest' ]]; then travis_retry composer update $COMPOSER_ARGS ; fi
   - if [[ $DEPS == 'lowest' ]]; then travis_retry composer update --prefer-lowest --prefer-stable $COMPOSER_ARGS ; fi
   - if [[ $TEST_COVERAGE == 'true' ]]; then travis_retry composer require --dev $COMPOSER_ARGS $COVERAGE_DEPS ; fi