Add basic cache support
Some improvements to cache (workout template, lang config, etc.)
Move up link to issues and add links to github and transifex
Add link to add exercises from the menu bar
Add command to read out the user submitted exercises
Output the number of deleted temporary users
Force SSL when communicating with reCaptcha's servers
Don't cache the user

This makes more trouble than it's worth for the speed improvement it
provides
When testing, clear all the cache on tear down
Add some tests to check the cache works properly
Fix problem with the robots exclusion middleware
Add names to more URLs
Add tests for the robots exclusion middleware
merge
Update tests
Fix formatting errors for new pep8 version 1.4.6
Add tests for the workout template cache
Render the edit/delete links for muscles outside of the cache block
Update funkload benchmark
Fix main.py script and fixtures for first-run after installation