New BreadContentSystem
======================
* Upload any file in chunks.
* Intergrates with other modules
* Check for hacks
Uploader now checks for existing files with MD5 and returns the URL after a
successful upload.
* Bread Content System
 * Few fixes to current implementation
 * Started work on a browser for searching through existing files and hooking into other services.
* Bread Comment System
 * Deleting now works (again)
 * Markdown is now outputting normally again.