Added/Changed several things

A: Admins can now view comments
A: Added ircmaxells password_compat lib for those who can't use php5.5
C: The readme contains install instructions
C: Changed the URL for Deleting posts from /edit/

Todo:
I'm unsure where to put the delete action and how to parse the URI, so I left that part out.
Filter comments on post_id

*Note - I'm not sure why 315 files are being pushed rather than the 4 or so I changed.*