Altered Marlin values to RigidBot values (need to revisit to break these out, but for now it gets the RigidBot firmware up to "modern" Marlin).  Also added the RB LCD menu items in language.h and the "stepper reset fix" to Marlin_main.cpp.  All of the code for the two dip switches on the RigidBoard was commented out in the RB Source, so I did not bring that code into Marlin.