Refactored dulmageMendelsohn so that it produces lower triangular instead of upper triangular (removed old), #554
Refactored dulmageMendelsohn so that it produces lower triangular instead of upper triangular (added new), #554
Updated MX, Matrix access/assignment methods (need refactoring), #554
Fetched Python examples from develop branch, #554
Fetched SWIG directory from develop branch, #554
Added support for converting from scipy.sparse.crc_matrix, #554