Config: configure default prefix
Changing use of EmailComponent to CakeEmail

Closes #320
Fix indentation, remove trailing/extra space
Enable plugin to be aware of default cache prefix
Fix: Login attempt counter cache was not generated

This allow unlimited login attempts which we should prevent.
The functionality is now reimplemented using events which is much
cleaner.
Fix: pass theme value to CakeEmail
Skip test when run against incorrect cake version
Merge branch 'master' into 1.5

Conflicts:
	Plugin/Contacts/Controller/ContactsController.php
	Plugin/Croogo/Test/Case/Lib/CroogoRouterTest.php
	Plugin/Users/Controller/UsersController.php
	Test/Case/Controller/UsersControllerTest.php