Update dependencies

composer.json

@@ -10,24 +10,11 @@
             "type": "vcs",
             "url": "https://github.com/alchemy-fr/tcpdf-clone"
         },
-        {
-            "type": "vcs",
-            "url": "https://github.com/nlegoff/PHP-FFmpeg"
-        },
-        {
-            "type": "vcs",
-            "url": "https://github.com/nlegoff/Mediavorus"
-        },
-        {
-            "type": "vcs",
-            "url": "https://github.com/nlegoff/Media-Alchemyst"
-        },
         {
             "type": "vcs",
             "url": "https://github.com/nlegoff/Imagine"
         }
     ],
-    "minimum-stability" : "dev",
     "require": {
         "php"                              : ">=5.3.3",
         "alchemy/oauth2php"                : "1.0.0",
@@ -44,8 +31,8 @@
         "imagine/imagine"                  : "dev-flatten-layer as 0.6.1",
         "jms/serializer"                   : "~0.10",
         "justinrainbow/json-schema"        : "~1.3",
-        "mediavorus/mediavorus"            : "dev-fix-video-dim as 0.4.3",
-        "media-alchemyst/media-alchemyst"  : "0.4.x@dev",
+        "mediavorus/mediavorus"            : "~0.4.0",
+        "media-alchemyst/media-alchemyst"  : "~0.4.0",
         "monolog/monolog"                  : "~1.3",
         "mrclay/minify"                    : "~2.1.6",
         "neutron/silex-imagine-provider"   : "~0.1.0",
@@ -53,7 +40,7 @@
         "neutron/sphinxsearch-api"         : "~2.0.6",
         "neutron/recaptcha"                : "~0.1.0",
         "neutron/temporary-filesystem"     : "~2.1",
-        "php-ffmpeg/php-ffmpeg"            : "dev-fix-aspect-ratio as 0.4.4",
+        "php-ffmpeg/php-ffmpeg"            : "~0.5.0",
         "php-xpdf/php-xpdf"                : "~0.2.1",
         "phpexiftool/phpexiftool"          : "~0.3",
         "silex/silex"                      : "~1.0.0",