Remove old version 1.3 of Django

This is the first commit in a series that upgrades OH
to Django 1.4.
Add version 1.4.13 of Django
Remove django-debug-toolbar v0.8.5
Add django-debug-toolbar version 1.2.1 and sqlparse version 0.1.11.

This is part of a series of commits to upgrade to Django 1.4.13.
Fix compatibility issue with Feed class

This is part of a series of commits to upgrade to Django 1.4.13.

Reference:
https://docs.djangoproject.com/en/1.4/ref/contrib/syndication/
Add and configure django.contrib.staticfiles

This is part of a series of commits to upgrade to Django 1.4.13.

Add STATIC_URL, add staticfiles into INSTALLED_APPS.
Remove our use of messages framework

Why? Because Django 1.4.13.

Deletes the JS that displays the message from server.
Remove bug recommendation feature
Disable search-related tests on sqlite3