Version 0.02.2 - Repository data location switch

This version switches hero's data from being stored in .vcs to being stored in .hero, so that the directory hero uses is once again named after the project.

Any repository made before this version (which, to my knowledge, is only my single test repository) can be upgraded to to the current version either by running hero-repofix 0.02.1 or by renaming the ".vcs" directory to ".hero".

hero-repofix is added as a new binary, which attempts to upgrade an old repository to the current hero version.