Lock username field, set "email" label for username field in frontend login module.
mailusername: Place as the first hook, make new username globally available
mailusername: module labels
Added .gitignore
Added C3 compatibility
Merge pull request #3 from Toflar/master

Added C3 compatibility
resolve conflicts due to pull from origin
autoload.ini from extern
add .directory and autoload.php to .gitignore