Fix rendering origin offset in matrix.  Matrix.Translate was modified in a previous commit which changed the MatrixOrder.  This was causing an invalid offset being set which through all graphics drawing off.
Modify some of the examples to test isFlipped contexts.
Clean-up Mac projects and samples to not have to use extra project definition for Size, Point and Rectangle.  This does use a modified version of MonoMac for now.
Add Makefile to compile System.Drawing.dll for monotouch and monomac.  There is still a circular dependency for MonoMac.dll
Merge pull request #8 from kjpou1/master

Fix rendering origin offset in matrix. <- Old -- Makefile for build .dll and project cleanup.