Removed WAKE_LOCK, posts rating is always shown, changed way of opening SlidingMenu.

It's better to use FLAG_FULLSCREEN instead of FULL_WAKE_LOCK (http://stackoverflow.com/questions/2131948/force-screen-on).
Posts rating is always shown in order to avoid overlay of the date on the rating.
Also deleted unnecessary lines in CommentsAdapter.java, changed SlidingMenu shadow.