Correctly get users from database, refs #1268.
refactor AdminModule/AdminController
refactor Blocks
refactor Categories
refactor Categories
update return value in docblocks
refactor Groups
refactor Mailer. PageLock does not require refactoring
refactor Permissions - including LogUtil -> getFlashBag->add()
refactor Search including FormUtil -> FlashBag
refactor SecurityCenter inc. LogUtil -> FlashBag
refactor LogUtil -> FlashBag for Admin, Blocks, Categories, Extensions, Groups, Mailer, Pagelock
refactor Settings inc LogUtil -> FlashBag
refactor Theme inc. LogUtil -> FlashBag
correct syntax error
refactor Users inc. LogUtil -> FlashBag
improve api return value
improve Form redirect handling.

Previously, the Form lifecycle was cut short if there was a redirect from the form handler (see FIXME in removed code). This aims to correct this issue while maintaining previous functionality where desired.
correct redirect handling in Form for MailerModule
add exit command.