Add support for gym management
Fix accessing the user data as a gym manager
Fix regular expression used to create new users
Save only the user pk to the session

For security reasons, Django 1.6 defaults to using a JSON serializer so
saving user objects to the session is not possible.
Add links to the user's gym
Move site administration options to user dropdown
Remove unused CSS classes for the mobile version
Add tests for the trainer user switching
Add missing migration files
Show the gym's data on its detail page
Remove reference to the YAML CSS framework
Fix issue with buttons and long text

If the workouts or nutritional plans had a long name, the text
in the index page was overflowing the buttons, creating a very
ugly effect
Add contact field to feedback form
Add system wide gym configuration options

At the moment this only allows the administrator to set a default
gym for the installation.
Cleanup views file for weight app
Add installation instructions for development version to README
Remove unneeded 'tests' folder

The tests are all in the individual apps folder
Remove mention of global test folder from documentation
Commit missing logo file
Move management command to core application

This deletes the guest users and does not belong in 'manager' anymore