Use modern django cache configuration in settings

[stapelberg]

Changing CACHE_BACKEND to memcached://127.0.0.1:11211/ has no effect at all anymore with django 1.8.

[stapelberg]

Note that I’m not 100% sure about LIVESETTINGS_CACHE_TIMEOUT (is it still necessary?)
and CACHE_MIDDLEWARE_ANONYMOUS_ONLY (what does it do/how does it translate to django 1.8 settings?), so I didn’t touch them. If I should also change them, please advise.

[evgenyfadeev]

There are two settings files templates, the more important one is with .mustache extention.

Also could you verify please that removed settings are not used/updated elsewhere in the code by searching the code base for every use of removed values.

[stapelberg]

Sorry for the late reply, this fell of my radar.

I’ve updated askbot/deps/livesettings/models.py, the only other reference to any of the cache-related settings is askbot/startup_procedures.py, which was already updated.

@evgenyfadeev Can you take another look at merging this please?