Conventions refactor. Added Vagrantfile.

- Updated all logging to used modern conventions.
- Rewrote logging configuration. Now we rely purely on console and Syslog.
- Enhanced debug mode. Can now be enabled via DEBUG environment variable, which increases logging as well.
- Repositioned and renamed scripts directory.
- Modernized packaging logic.
- Moved requirements and README to gdrivefs/resources.
- Rewrote README from MD to RST.
- Deimplemented Versioneer.
- Yanked package-level logic.
- Removed a couple of singleton implementations, and replaced with standard module-level logic.
- Removed erroneous packaging code from Git.
- We also added a Vagrantfile for development in a controlled environment, whether or not you're developing from a Linux host.