few updates with fb integration and some other changes in user and supports data to android

Conflicts:
	vendor/built_in_modules/gallery/app/controllers/panel/gallery/back_end/albums_controller.rb

app/models/desktop/facebook.rb

@@ -0,0 +1,9 @@
+class Facebook
+	include Mongoid::Document
+  	include Mongoid::Timestamps
+
+  	field :fb_identifier
+  	field :connected, type: Boolean
+
+  	belongs_to :user
+end