Nemo

Bug Fix
* Fixed an issue with platform specific formatting (was causing issues on Windows)
* Fixed an issue when enabling a tool would not work if the user id contained a specific number

Bug Fix
* fixed an issue with overlapping reservations not being counted correctly towards capacity

Bug Fix
* Fixed a small UI issue where calendar/tool control would not show up correctly when impersonating.
* Fixed an issue where Jumbotron would try to show tool usage info when no tools are set up

Bug Fix
* fixed an issue with impersonating (couldn't go back in some conditions)

Bug Fix
* fixed an issue when `rest_framework` isn't installed

New Features
* (**superusers only**) added the ability to impersonate other users. Located in the administration dropdown menu. You'll need to add `'NEMO.middleware.ImpersonateMiddleware',` to `settings.py` for this to work
* default user reservation preferences can be overridden in settings.py with `USER_RESERVATION_PREFERENCES_DEFAULT = True`

Bug Fix
* fixed a bug where access usage was not showing when clicking on areas in sidebar

Improvements
* removed hard coded urls which cause issues when deploying using subpath
* added success message when saving user preferences
* fixed authentication issues when using multiple authentication backends (especially when mixing pre-auth backends and backends using login page)