Added 2nd order cubic anisotropy to CUDA file
Fixed syntax tab spacing
Merge pull request #13 from cjermain/master

Thanks, I'll implement the higher level code.
fix DefRegionCell: x,y,z was still swapped (z,y,x)
add square shape
relax() bugfix: should not save output
cleanup cubic anisotropy test
fix snaphsot of scalar quantity
fix imageshape offset (thanks Aurelio Hierro)
not yet perfect if image size != grid size
add regression test for imageshape
tests maintenance
tests maintenance
tests maintenance
update cubicanisotropy wrappers for Colin's 2nd order term.
expose Kc2