Create COPYING
Minor patch to latest version of RabbitVCS nautilus plugin.

Replaces setattr calls on window with window.basepath instead, which should fix some
exceptions.
Update README to reflect new version of RabbitVCS plugin.
Bumped versions to 2.0.0
Fixed cjs version
Merge pull request #27 from leigh123linux/patch-1

Create COPYING
Merge pull request #28 from wrouesnel/rabbitvcs

Minor version bump for RabbitVCS plugin