Yoda

- Switch to yaml.safe_load() [21](https://github.com/Numergy/yoda/issues/21).

- Fixed repository cloning.
- Fixed adapters logging [17](https://github.com/Numergy/yoda/issues/17).
- Improved logging unit testing [20](https://github.com/Numergy/yoda/issues/20).
- Don't stop process when error occured in status/update subcommands.
- Prohibits the use of slahes in workspace and repository names.
- Logging improvements.

- Implemented mercurial adapter [11](https://github.com/Numergy/yoda/issues/11)
- Implemented bazaar adapter [12](https://github.com/Numergy/yoda/issues/12)
- Implemented subversion adapter [16](https://github.com/Numergy/yoda/issues/16)
- Tests refactoring

- Fixed issue [14](https://github.com/Numergy/yoda/issues/14) for following commands:
- yoda `ws_name` sync
- yoda `ws_name` add
- yoda `ws_name` remove

- Add changelog file ([https://github.com/Numergy/yoda/issues/15](https://github.com/Numergy/yoda/issues/15))
- Can't add workspace ([https://github.com/Numergy/yoda/issues/14](https://github.com/Numergy/yoda/issues/14))

- FileNotFoundError if logfile have wrong path ([https://github.com/Numergy/yoda/issues/13](https://github.com/Numergy/yoda/issues/13))
- Adapter's outputs aren't logger ([https://github.com/Numergy/yoda/issues/8](https://github.com/Numergy/yoda/issues/8))
- Add `config` subcommand ([https://github.com/Numergy/yoda/issues/3](https://github.com/Numergy/yoda/issues/3))
- Show coveralls in README.md ([https://github.com/Numergy/yoda/issues/2](https://github.com/Numergy/yoda/issues/2))
- Move log file in yoda user's directory ([https://github.com/Numergy/yoda/issues/1](https://github.com/Numergy/yoda/issues/1))