Fix redirect

Update master

* Added a salt column to the user table.
* Adds a salt to users that have no salted password upon succesfull login.
* Salts are now more unique/random

* Bug fixed:
This commit fixes a bug where a password could by stored to the database
in plaintext format by the AdminController->actionUpdate() function,
when an admin would supply an unencrypted version of the old password
(effectively changing the password to itself, but skipping the encryption
methods).

…sswords

Fix lastvisit_at update on login

…ted_passwords

Conflicts:
	controllers/RegistrationController.php
	models/User.php

Conflicts:
	UserModule.php
	components/UserIdentity.php
	controllers/RegistrationController.php
	models/User.php
	models/UserChangePassword.php

* Replaced Randomness extension (Unix only) with a more generally compatible static function in the User model for Blowfish salt generation
* Added $2y$ Blowfish mode to deal with potential high-bit attacks for PHP versions >= 5.3.7
* Fix a small typo causing fatal error:wq

…set.

…sed)