Added option to maintain lazy RU-decomposition during transpositions. Plus minor fixes.
import os
cgal_path = os.environ.get('CGAL_DIR')
cgal_architecture = os.environ.get('CGAL_ARCHITECTURE')
qt4_dir = '/opt/qt4'
qt4_includes = qt4_dir + '/include'
qt4_libs = qt4_dir + '/lib'
#CXX = '/home/dmitriy/bin/gfilt'