DSN node image

Release 1.0 (2007-02-21)
* remotely control power of target node
* monitor power usage (voltage and current) of target node
* simplify/standardize dsn commands (http://www.btnode.ethz.ch/Projects/JAWS-TerminalCommands)
* introduce packet traffic monitoring on DSN node
* flash protection on hardware-incompatible images
* many bugfixes