Minor cleanups on views, templates and url patterns
Improve Django 1.5 support: Djblets imports cleanups

Avoid using deprecated code to allow using latest Django releases
Cleanup: unified admin URLs
Unified names for named URL patterns
Cleanup: removed dead code

This code path was never reached.
Rename URL pattern to align with Evernote
Reposition URL pattern to align with Evernote

This eases picking their changes
Wrap URL pattern

This eases picking Evernote changes
Cleanup: unified and cleaned URLs
Fixed URL pattern name