Moved some get position functionality to ISMesh.
Moved get_pos functions to ISMesh.
Removed the get_pos function for tetrahedra.
Removed the get_pos function for edges.
Removed the get_pos function for faces.
Improved performance of some of the getters for simplex keys.
Removed some getters for simplex keys.
Minor performance improvements.
Renamed typedef of ISMesh from Complex to ISMesh.
Clean up in typedefs and a couple of minor bugfixes.
Rearranging the functions in the ISMesh class.
Clean up in Key and Simplex classes.
Better drawing of low quality tetrahedra.
Minor clean up in count functions.