Inhibit keycode 255 remapping and add signal management
Inhibit keycode 255 remapping and add signal management

Since the keycode 255 remapping is done by the start shell script
(previous commit), the cpp remapping has been commented out.
The Space2Ctrl object is now managed by using new and delete and
a simple signal management has been added.

ChillarAnand/Space2Ctrl,ChillarAnand/Space2Ctrl