Wacom ExpressKeys

This release adds support for Cintiq 20WSX.

This version has a slightly improved logic for
Touch Strip movement detection, a minor bugfix
related to long filenames of the executable, and
two compatibility changes to prevent future
breakage in relation to upstream code.

This version is a complete rewrite where a dependency on linuxwacom 0.7.5-2 or later has been added for all tablet models. Among the new features, fine-grained control of button auto-repeat stands out, as does configurable delay times between sending of the (many) keycodes. Touch Strips have gained repeat at the top and bottom positions. A maximum of fifteen tablets, three of each model, and two styli per tablet can be handled concurrently. 'Models' are: nopad, Graphire4 BlueTooth, Graphire4, Intuos3 small, and Intuos3/Cintiq.

Linuxwacom version 0.7.5-2 changed the internal button ordering of the Graphire4. This release complies with the new layout. No other changes were made.

Support for the scroll wheel and two ExpressKeys on the Graphire4 was added. This feature requires a bleeding edge version of the linuxwacom driver. When running under versions earlier than 0.7.5, a Graphire4 will still be identified as 'padless'. A minor bugfix and some code enhancements were also included.