- Completely restructured the checks in subdir check/. - Optimized Laplace expansion of determinants to not compute anything more than once. - Moved int permutation_sign(vector<T> s) from matrix.cpp to utils.h. - A handful of other fixes assiciated with the above.
- added simple checks of manipulations with lortensor objects.
- introduced info_flags::cinteger, info_flags::crational, info_flags::cinteger_polynomial, info_flags::crational_polynomial with intuitive behaviour. - extended documentation - made things like evlaf(zeta(3)) work - killed several bugs
Initial revision