- force projects to return unicode names and branches, or None
- refactor ProjectMap to set project name from cfg file
- pass configs to find_project() as dict from plugin's cfg section
- clean up git project class
updates to config file:
- rename ~/.wakatime.conf to ~/.wakatime.cfg
- better error handling while parsing and getting configs
- no longer need to set defaults when parsing config file
- use configparser for python3 when python2 import fails
