#111: Fixed removing repository
#111: added specs for repository and platform models
Merge pull request #113 from abf/rosa-build:111-not-deleting-repository-when-delete-it-in-web-interface
 #111: not deleting repository when delete it in web interface
Fixed: Errno::ENOENT: No such file or directory - /share/tmp
Updated README, added links to docs
Update README.md
small refactoring
Merge pull request #116 from abf/rosa-build:update-readme
 Update README