Add the venv directory to the ignored filepaths

Conflicts:
	.gitignore
Update development requirements
Update to Django 1.5.1
Remove included grappelli install, start fix to use an installed version
Enable static file serving
Remove unused code, PEP8 cleanups
Add README screenshot
Update README
Update README screenshot link
Merge branch 'development'

Conflicts:
	.gitignore
	requirements/development.txt
Move TODOs to README file
Merge pull request #2 from rosarior/master

Sync with upstream