Reposing

See https://github.com/einzige/pose-rails
See https://github.com/einzige/pose_dummy

Getting rid of Rails... Now we are able to use Pose without Rails + we can use it with rails in "old fashioned way" using `pose-rails` gem. Once you merge, I'll bundle gem...

+ Now we have much better test environment. Postgres and SQlite running both. Easy to add any other adapter.
+ We are ready for refactoring :)
- No dummy app anymore, it has been extracted to separate repo.
+ Fixed all dependencies and Gemfile

:walking: