Add a cleanup method.

Cleans up the symlink from /mnt/state to / that is needed.
Fix dry_run

dry_run was not honored previously.
Cleanup tmp_dir
Set _LIB in os.environ
Logging updates
Add arg to call os-refresh-config
Remove log file
Update .gitignore
Initialized to use tito.
Add spec file
Automatic commit of package [instack] release [0.0.3.6.ge72276e-2].
Update spec
Remove option to call os-refresh-config
Reset version in spec
Fix tito tag
whitespace cleanup
Automatic commit of package [instack] release [0.0.4-1].