Added key combination for switching the workspaces
Now,we have key bindings to switch forward and backwards
Switching workspaces now works
Merge branch 'master' into switchWorkspace

Signed-off-by: Martin Jorn Rogalla <martin@martinrogalla.com>

Conflicts:
	airwm.js
	config.json
Merge pull request #10 from AirWM/switchWorkspace

Added support for multiple workspaces.