Move imcludes into implementations

I totally misunderstood how header file includes worked, but now I think
I have it under control; only using file declarations where totally
necessary.
Parse markdown comments in UIWebView
Setup preloaded UIWebViews for CommentViews to use
Give each CommentView a reference to the CommitView for assess to web views
Replace text comments with UIWebViews
Fix bug in finding commit level comments
Steal github markdown styling