Structuretest (when run standalone) times the isomorphism check.
Structuretest (when run standalone) times the isomorphism check.

Uses the timeit module. Takes the best of 10 runs of 1000 isomorphism tests
of C=CC=C[CH]C against C[CH]C=CC=C  (which should be true)

git-svn-id: 38f1702c2d2bc28f7341d40983eddaad0d99b903@153 37378900-1858-4726-a06b-e54562fdc990

comocheng/RMG-Py,nickvandewiele/RMG-Py,nyee/RMG-Py,nyee/RMG-Py,chatelak/RMG-Py,faribas/RMG-Py,comocheng/RMG-Py,enochd/RMG-Py,nickvandewiele/RMG-Py,KEHANG/RMG-Py,chatelak/RMG-Py,faribas/RMG-Py,pierrelb/RMG-Py,enochd/RMG-Py,KEHANG/RMG-Py,pierrelb/RMG-Py