Experimental changes to trapezoid generator.
Adding Slic3r preprocessor.
Backing off, was slightly too aggressive wight he changes.
More bettered trapezoid generation.
033.01 Re-sync with Rob branch for trapezoid planner work
037.01 Re-sync with Rob branch for trapezoid planner work (that should have been build 037.01, not 033.01)
037.02 Updated trapezoid planner for revised short line handling
037.03 Some corrections in the trapezoid generator
planner comments
Testing Z VREF on G2v9g
The Make file will now automatically download and use the toolchain if it's missing.

This only work on OSX and Linux. For Windows use Atmel Studio 6.1 SP1 or newer.
Tuning Ultimaker_Rob settings.
This hides all but one warning during compile.
039.01 Intermediate commit - merge tinyg code
intermediate commit
039.02 Intermediate commit - merge tinyg code
039.03 Intermediate commit - merge tinyg code
039.04 Intermediate commit - merge tinyg code - probing
039.04 Merge tinyg code; jogging - mostly back-porting to TinyG
039.07 Merge tinyg code; encoders, parsers, kinematics