Adding password_compat for php5.5 password hashing compatibility #759
refactor password hashing to support bcrypt/php5.5 style password
hash. Fixes #759
Merge commit 'b00cf3637bb42e4dcacd4051ae397fe8aa044ce9' into 4.0.2-rc3

Conflicts:
	src/libraries/dependencies.php
Passing `extra` to `postUser` when resetting password. #1471