Added support for changing password to VoyagerRestful and MultiBackend d...

...rivers. Added support for specifying password policy when creating an account or changing password (currently minimum and maximum length). Added a properly translated submit button value to the new password form to avoid browser default.

Theme changes are bootstrap3 only.

This commit also includes 1000hz Bootstrap Validator for validating the input fields. I'm open to changing this if Chris decides that another approach is better or something.