Position and Distance facets -- version 1.0
Add NS-3 path in Makefile.template
Add Rand facet
Add set_position API to position facet
Serial communication facet (using debug facet)
ExtendedDataRadio -- version 1.0
ExtendedDataRadio facet
Tx Power Radio facet -- version 1.0
Merge pull request #52 from dizhizhou/master

Pull request: GSoC'13 Wiselib NS-3 Port -- Position, distance and rand facet
Add radio extensions methods into radio class
radio extension files were deleted
Merge pull request #55 from dizhizhou/master

Pull request: GSoC'13 Wiselib NS-3 Port -- radio extension facets update
Add NS-3 port codes into apps/ns3_apps/ folder and update ns3.sh script
Remove ns3.sh in generic_apps/
Merge pull request #56 from dizhizhou/master

Pull request: GSoC'13 Wiselib NS-3 Port -- Add all NS-3 port codes into apps/ns3_apps/
Merge remote-tracking branch 'upstream/master'
fixes to xbee interface
Merge branch 'xbee_module'

Conflicts:
	apps/arduino_apps/xbee_radio_app/Makefile
	apps/arduino_apps/xbee_radio_app/example_app.cpp
	apps/arduino_apps/xbee_radio_receive_app/Makefile
	apps/arduino_apps/xbee_radio_receive_app/example_app.cpp
	wiselib.testing/external_interface/arduino/arduino_xbee_radio.h

merging xbee branch
bluetooth module updated