Added git gem dependency.
Added git functionality to base script.
Made add_license_header.rb commit its changes.
Removed gem check. Relying on raised errors.
Fixed path error. (Added ../ at wrong line).
Fixed path error, again...
Made new_exception.rb commit its changes.
Fixed argument parsing problem.
Added new exception type: NotSupportedException. (script)
Wrapped in function and added option to opt-out on commiting.
Added git commit function that makes sure license notes exists.
Changed new_exception.rb to use new commit function.
Added license notes. (script)