CONN-471: Respect RegPerEmail limit and Phalanx in UserSignup::sendConfirmationEmail
Removed whitespace
CONN-471: Added comment for withinEmailRegLimit
Moved Phalanx check after setEmail
Refactored changeUnconfirmedUserEmail function
Moved comments
Moved "disable captcha check" to separate function
Moved withinEmailRegLimit and isWikiaEmail to UserLoginHelper
Validate User profile email changes with Phalanx
Merge pull request #3323 from Wikia/CONN-471

CONN-471: Respect RegPerEmail limit and Phalanx in Signup::sendConfirmationEmail