Update test-suite, use alchemy/mediavorus

.gitignore

@@ -1,5 +1,6 @@
 /nbproject
 composer.phar
+composer.lock
 /vendor
 /tests/phpunit_report
 /docs/build

.travis.yml

@@ -1,5 +1,7 @@
 language: php
 
+sudo: required
+
 services: []
 
 before_script:
@@ -13,11 +15,15 @@ before_script:
   - sh -c "cd imagick-3.1.0RC2 && phpize && ./configure --with-imagick=/usr/local && make -j && sudo make install"
   - echo "extension=imagick.so" >> `php --ini | grep "Loaded Configuration" | sed -e "s|.*:\s*||"`
   - composer self-update
-  - composer install --dev --prefer-source
-
-php:
-  - 5.3.3
-  - 5.3
-  - 5.4
-  - 5.5
+  - composer update --prefer-source --no-interaction $LOW_DEPS
 
+matrix:
+  include:
+    - php: 5.3.3
+    - php: 5.3.3
+      env: LOW_DEPS="--prefer-lowest"
+    - php: 5.3
+    - php: 5.4
+    - php: 5.5
+    - php: 5.6
+    - php: 7.0

composer.json

@@ -17,22 +17,23 @@
         }
     ],
     "require": {
-        "php"                            : ">=5.3.3",
-        "alchemy/ghostscript"            : "~0.4.0",
-        "imagine/imagine"                : "0.6.x@dev",
-        "mediavorus/mediavorus"          : ">=0.4.2,<0.5",
-        "monolog/monolog"                : "~1.0",
-        "neutron/temporary-filesystem"   : "~2.1",
-        "pimple/pimple"                  : "~1.0",
-        "php-ffmpeg/php-ffmpeg"          : ">=0.4.2,<0.6",
-        "php-unoconv/php-unoconv"        : "~0.3.0",
-        "php-mp4box/php-mp4box"          : "~0.3.0",
-        "swftools/swftools"              : "~0.3.0",
-        "symfony/console"                : "~2.0",
-        "symfony/filesystem"             : "~2.0"
+        "php": ">=5.3.3",
+        "alchemy/ghostscript": "~0.4.0",
+        "alchemy/mediavorus": "^0.4.4",
+        "imagine/imagine": "0.6.x@dev",
+        "monolog/monolog": "~1.0",
+        "neutron/temporary-filesystem": "~2.1",
+        "php-ffmpeg/php-ffmpeg": ">=0.4.2,<0.6",
+        "php-mp4box/php-mp4box": "~0.3.0",
+        "php-unoconv/php-unoconv": "~0.3.0",
+        "pimple/pimple": "~1.0",
+        "swftools/swftools": "~0.3.0",
+        "symfony/console": "^2.1|^3.0",
+        "symfony/filesystem": "^2.1|^3.0",
+        "symfony/process": "^2.1|^3.0"
     },
     "require-dev": {
-        "phpunit/phpunit"                : "~3.7",
+        "phpunit/phpunit"                : "^4.1|^5.0",
         "neutron/silex-imagine-provider" : "~0.1",
         "phpexiftool/phpexiftool"        : "~0.1",
         "silex/silex"                    : "~1.0"