Configure travis to build 5.20
Allow failures on 5.20 for now; 5.18 seems ok
Adding the API Document.
Stargazers controller file.
Controller script for User.
Testing script for stargazers.
Tidy all.
Abiding by the Perl Critic standards.
Small changes to the code.
Using Try::Tiny.
Use Roles to implement starring.
Rename MetaCPAN::Role Script and code cleanup.