Avoid installing apigen on PHP 5.3

It is not supported there

Signed-off-by: Michal Čihař <[email protected]>

Author: nijel

.travis.yml

@@ -28,6 +28,7 @@ matrix:
 sudo: false
 
 install:
+  - if [ "$TRAVIS_PHP_VERSION" = "5.3" ] ; then sed -i '/apigen/D' composer.json ; fi
   - if [ -n "$REQUIRE" ] ; then composer require "$REQUIRE" ; fi
   - composer install
 

composer.json

@@ -20,9 +20,9 @@
         "symfony/polyfill-mbstring": "^1.3"
     },
     "require-dev": {
+        "apigen/apigen": "^4.1",
         "phpunit/php-code-coverage": "*",
-        "phpunit/phpunit": "~4.8 || ~5.7 || ~6.5",
-        "apigen/apigen": "^4.1"
+        "phpunit/phpunit": "~4.8 || ~5.7 || ~6.5"
     },
     "conflict": {
         "phpmyadmin/motranslator": "<3.0"