Update instructions to fix jar naming issue

Change name of rxtx jar in $m2_repo
Update Instructions to fix jar naming issue

Also add a sample rxtx pom file to the src/test/resources directory
Added Arduino Ethernet and MSP430 devices

Moved devices to own package.
Changed to use properties files instead of only command line arguments.

Reorganized class files.  Added RXTX sample pom if folks need it.
Added lame support for non-serial devices
Added support for Arduino Ethernet LED strip and MSP430 Launchpad based
devices.