Change database

Change database again
Fix NameError
Update ajax.py
Improve home.html
Add south to installed apps
Remove note/migrations
Update .gitignore
Update .gitignore
Update settings.py

Add several new types of notes; Improve search
Compress styles and JavaScript
Tab handling for textarea
Use smtp.gmail.com as SMTP server
Fix bug with snippets on a search page
Fix another bug snippets on a search page
Get rid of Bootstrap and Bootflat; Refactor JS code
Fix margin for next button (pagination)
Reduce header padding; Change fonts
Improve semantics
Implement read more button; make design more stable
Fix bug with Django's 'autoescaping off'