Merge pull request #55 from leonardt/hidden-menubar-support

Hidden menubar support
Merge remote-tracking branch 'upstream/master'
Use the right spaces configuration key path for Mavericks.

Should fix #57
Make minimum version 10.9.
Merging upstream mavericks bug fix
Merge branch 'master' into layout-hotkey-support
Merge remote-tracking branch 'upstream/master' into layout-hotkey-support
setting default bindings to homerow