v0.03

 - Point the user at the Constants module from the main docs.
 - Add a CONTRIBUTING section to the docs describing how v3.pm
   is generated.
 - Add an author/README.pod to explain how the module generation
   works.
 - Add an EXCEPTIONS section to the docs explaing how exception
   handling it done.
 - Log stuff using Log::Any.
 - Added a SEE ALSO section with reference to Net::GitLab.