add n_gcd_full which takes operand in either order
fix warnings
fix warning about un-parenthesised && within ||
fix another warning
add nmod_inv, nmod_pow_ui for consistency
silence a few more warnings
improve test code and fix a potential bug in fmpz_poly_mat_mul_KS (no known failure though)
fix issue with fmpz_jacobi
propagate fmpz_poly_mat_mul_KS bugfix to sqr_KS
fix warnings
kill warning about string literal length
fix bug in fmpq_set_si and add test
Merge remote-tracking branch 'johansson/trunk' into trunk