Moved configs & proj dirs to ~/.ci_bootstrap/.
Moved configs & proj dirs to ~/.ci_bootstrap/.

I did this because it doesn't make sense if it is a gem to use the installed
gems path. Also, it didn't make sense to use it as the source for user
specific configs. Therefore, I changed the directories to
~/.ci_bootstrap/provider_config.yml and ~/.ci_bootstrap/ as the root of the
project directories.

justinleveck/boxci,reachlocal/boxci,codebreakdown/boxci