Use console logging for accounts logger
View all account types in dashboard list view

Previously, we were only showing deferred income accounts.  We now relax
this to show all accounts.

The buttons for freezing/updating system accounts are disabled.

Fixes #18
Check for transfers between the same account
Use tox for testing different envs
Split requirements files

Use one for testing, one for the sandbox.
Fix Django 1.6 errors

- Use ATOMIC_REQUESTS = True
- Stop using deprecated property for raw requests data
Add TEMPLATE_CONTEXT_PROCESSORS to test set-up

These are required so we can add the request processor, which is
required for the dashboard.
Merge remote-tracking branch 'upstream/master'