Merge pull request #5 from kakila/master

Adding autotools support
[configure] Reduce required autoconf version to 2.65
Dwengo IO-board functionality
Merge pull request #8 from twaegemn/master

Dwengo I/O-Board functionality
Merge pull request #6 from kakila/master

Improved user make scripts and fixing problem with .lib
dwengoSound
Merge pull request #9 from PMissault/master

dwengoSound
change sound RC2 to RC0 to avoid interference with motor