Update forms.py

Edits to field labels and error messages.
Change Github and Django Logos
Add basic 404 page.
Merge remote-tracking branch 'upstream/master'
Update README.md
Updated 404 Page

Added Cat Image
Issue #194 | Admins can edit other admins' blog entries.
Rework Account Edit page

While fixing Issue #199, broke up the page, factored some text content
out of the site.
Merge pull request #197 from zbirmingham/master

Updated GitHub and Django/Python Logo
Merge pull request #198 from jfarbowitz/master

more text edits
Merge branch 'bugfixes'

Conflicts:
	vegancity/forms.py
Modify templates to support new user features.

Pulled in templates from the admin views, we can now modify them
to fit with our design.

Reworked some of the logic of account_edit / account_page to support
public profiles, password changes and tie them in with the existing
pages.
Cleanup URLs and add new user account urls
Fix bug that was crashing the admin
Update views to support new pages
Add hyperlinks to user accounts
Fix gravatar url for users without email addresses
Expand regex in user URL to support all legal characters
Update Review Form

Add some javascript to show/hide the two different ways of attaching a
vegan dish to a review, freeform and dropdown.

Clean up HTML layout to be a little clearer.

Broke up Django Form into more maleable html.

Plucked out some help text from the models.
Make supervisor start the runserver on boots