Partially fix RegisterController
Fix a small bug in inline CSS style
Work on localizations
Clean up
Format
Small fix in SimpleFilter

Do not upcase search string, the `LIKE` operator is case insensitive for ASCII and case sensitive for other letters.
Order model associations

When declaring associations in models, list them in the order: belongs_to, has_one, has_many.
Make User more aware of its roles
Log in users with a single role each time
Make Person declare its associated roles

Make Person declare its associated roles (member, instructor). The new method can be called to see if it is safe to delete a person.
Deal with NULL people.name_title DB values
Work on instructors and members controllers

Work on #create, #update, and #destroy actions in MembersController and InstructorsController.
Member's activity and memberships in register

Display members's activity and memberships when preparing a new transaction in register controller.