#176 Got index-1 access/assignment working in MATLAB
#176 Added rule to transpose second index argument
#176 Refactored MATLAB getitem/setitem, moved to interface file
#1295 Removed Matrix::getSub, fixed bug in SubRef class.
The SubRef class is not being used anywhere (not available via public API), so the bug was harmless.
#1295 Renamed MX::sub to getSub, Matrix::sub to setSub, changed order of arguments.
Had index-one argument come earlier to allow specifying different behavior for A(i) and A(i,0). Removed old.
#1295 Enabled new MX::/Matrix:: getSub/setSub