Adds Morgan SCARA solution to smoothieware
Will be adaptable to other SCARA systems

	modified:   src/modules/robot/Robot.cpp
	new file:   src/modules/robot/arm_solutions/MorganSCARASolution.cpp
	new file:   src/modules/robot/arm_solutions/MorganSCARASolution.h
update firmware.bin
Merge pull request #449 from RepRapMorgan/addSCARA

Adds Morgan SCARA solution to smoothieware
Merge pull request #450 from wolfmanjm/upstreamedge

Fix M82/M83
update firmware.bin
Merge branch 'edge' of github.com:Smoothieware/Smoothieware into edge
fix G90/91 for Extruder