Began to managed using Git!
Changed the interface. Function to Command.
Added an English and Japanese help document.
(The changelog section is incomplete.)
Removed a comment that describe this plug-in feature.
It's no longer needed as a help document was added.
Added code sections that backup / restore 'cpoptions'.
Merge branch 'add-doc' into dev

Conflicts:
	plugin/closesomewindow.vim