Do not intercept redirects for ajax requests
Fixed issue #230 -- Avoid queries in aborted transactions

On PostgreSQL when the transaction is in aborted status, checking
connection.isolation_level will result in an error.
Made usable connections with alias not in db.connections
Made possible to use DJANGO_SETTINGS_MODULE in testing

Also added a dummy test_pgsql settings file.
Tests for issue_230
Add EXPLAIN ANALYZE for Postgres
Fix displaying instance of RawQuerySet in templates toolbar
Fixed CSS according to standarts
Python 2.5 compatibility #261
Avoid importing `django.conf.urls.defaults` on django 1.4+
Use the built-in json module on python >= 2.6.

`django.utils.simplejson` is pending deprecation as
of django 1.5 and will be removed in 1.7.
Merge pull request #350 from charettes/simplejson

Use the built-in json module on python >= 2.6.
Merge pull request #349 from charettes/django-1.5-compat

Avoid importing `django.conf.urls.defaults` on django 1.4+
Updated example to use class-based generic views

Django dropped the function-based generic views in favor of class-based generic views. 
The transition is outlined here: https://docs.djangoproject.com/en/1.4/topics/generic-views-migration/
Improvements for decoding params for recording
Improve how we decode strings
Basic make test command
Merge pull request #323 from mattrobenolt/explain-analyze

Add EXPLAIN ANALYZE for Postgres
Merge branch 'issue_230' of git://github.com/akaariai/django-debug-toolbar into akaariai-issue_230

Conflicts:
	debug_toolbar/utils/tracking/db.py
Merge pull request #342 from davidwtbuxton/master

Python 2.5 compatibility, fixes #261