Add video onebox support

lib/oneboxer/video_onebox.rb

@@ -0,0 +1,13 @@
+require_dependency 'oneboxer/base_onebox'
+
+module Oneboxer
+  class VideoOnebox < BaseOnebox
+    
+    matcher /^https?:\/\/.*\.(mov|mp4|ogg)$/
+
+    def onebox
+      "<video width='100%' height='100%' controls><source src='#{@url}'></video>"
+    end
+
+  end
+end