pointer testing and nodes!
refactoring and visualization
testing octree
Sharing of nodes in OcTree
Ascii drawing skillz
counting and linking xFaces
count and link Y faces
Count and link Z faces
refactor quad tree face numbering
Switch to Edges (few bugs in the refinement code..)
bug fixes to face centre locations. Lots more testing..
Refactor gridding code.
114 more tests!
nodal grid test.
test all grids.
bug fixes.
refactor faceInnerProduct2D code to get ready for octree
refactoring
refactor faceInProd 3D
finished pulling out projection code.