Merge pull request #14 from peter-gribanov/php5.5

Correct build and run tests

.travis.yml

@@ -19,37 +19,20 @@ matrix:
         - php: 7.0
         - php: 5.6
         - php: 5.5
+          dist: trusty
         - php: 5.4
-          env: SYMFONY_VERSION=2.7.*
-        - php: 5.4
+          dist: trusty
           env: SYMFONY_VERSION=2.8.*
         - php: 5.5
-          env: SYMFONY_VERSION=3.0.*
-        - php: 5.5
-          env: SYMFONY_VERSION=3.1.*
-        - php: 5.5
-          env: SYMFONY_VERSION=3.2.*
-        - php: 5.5
-          env: SYMFONY_VERSION=3.3.*
-        - php: 5.5
+          dist: trusty
           env: SYMFONY_VERSION=3.4.*
-        - php: 7.1
-          env: SYMFONY_VERSION=4.0.* PHPUNIT_VERSION=5.7.*
-        - php: 7.1
-          env: SYMFONY_VERSION=4.1.* PHPUNIT_VERSION=5.7.*
         - php: 7.1
           env: SYMFONY_VERSION=4.2.* PHPUNIT_VERSION=5.7.*
         - php: 7.1
           env: SYMFONY_VERSION=4.3.* PHPUNIT_VERSION=5.7.*
-    allow_failures:
-        - php: hhvm
-          sudo: required
-          dist: trusty
-          group: edge
 
 before_install:
     - echo "memory_limit=2G" >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
-    - if [ "$TRAVIS_PHP_VERSION" = "hhvm" ]; then echo 'xdebug.enable = on' >> /etc/hhvm/php.ini; fi
     - if [ -n "$GH_TOKEN" ]; then composer config github-oauth.github.com ${GH_TOKEN}; fi;
 
 before_script: