Camerahub

Features
* Add field for DX code (761)
* Calculate and display profit on sold objects (756)


Fixes
* Only allow negatives to be added to films which are Loaded or Developed (759)
* Filter financial stats to the owner (755)
* Restrict object counters to objects that are currently owned (757)

Features

* Add private stats about collection percentage (750)
* Add private stats for money spent on cameras & lenses (752)
* Display lens name in camera model list view (749)
* Render boolicons in camera mount list view

Fixes

* Use tag slugs when building URLs to fix problems for tags that have spaces etc (747)
* Drop image column from camera model and lens model list views, to improve performance
* Drop display of location icon from negative list view, to improve performance

Features

* Show camera info in negative detail view (741)
* Auto-populate metering mode and exposure program for negatives (713)
* Various caching improvements (652)
* Enable django-speedinfo profiler (652)
* Add ordering to remaining models that don't already have it (714, 269)
* Update python deps and add a new pylint rule


Fixes

* Some public views were accidentally marked to require login (652)
* Use correct HTML symbol for `&` (652)
* Stop serving static assets from uwsgi (734)

* Add dedicated health check endpoint

* Clear static files before populating

* Export metrics for all models (216)