Update Admin code to use the new SiteCryptModule.
Update package.php dependencies.
This method is no longer required.
Update site dependency.
Add dependency to crypt and update copyright year.
Replace old methods with the new module's methods.
Update copyright and simplify.
Remove no longer used method.
Update comment.
Use new method name.
Merge pull request #5 from charleswaddell/update-password-hashing

Update Admin password hashing