Adding composer.json. Closes #13.

Author: Brandon Arbini

composer.json

@@ -0,0 +1,14 @@
+{
+  "name": "zencoder/zencoder-php",
+  "homepage": "http://github.com/zencoder/zencoder-php",
+  "description":"Zencoder integration library for PHP",
+  "keywords":["zencoder", "encoding", "encoder", "cloud"],
+  "type":"library",
+  "license":"MIT",
+  "authors":[
+    {
+      "name":"Zencoder",
+      "homepage":"http://zencoder.com"
+    }
+  ]
+}