email_confirm 6.x-1.4

Changes since DRUPAL-6--1-3:

• #367186: Add a watchdog message when email was changed, #403260: Let other modules know that mail was changed Added a hook to allow other modules to act on email change requests and confirmations of email changes.
• updated the README
• swap out t() for strtr() in hook_mail() implementation since t() is operating off of a variable value and so should not be used.