Merge remote branch 'wbhart/trunk' into trunk
add flint_cleanup calls in fft and mpfr_vec, and uncomment t-adjust_sqrt
insert flint_cleanup calls in nmod_poly tests
insert more flint_cleanup calls
call flint_cleanup in ulong_extras tests
Merge remote branch 'wbhart/trunk' into trunk
Merge remote-tracking branch 'fredrik/trunk' into trunk