fix a comment
include multithreaded partition function and update documentation
use the new fmpz_poly_cos_minpoly in flint instead of elefun_cos_minpoly
respect use_doubles
minor doc tweaks
remove an unused variable and rename an internal function to avoid namespace conflict with flint
Merge remote branch 'origin/master'
more accurate version of fmprb_poly_mullow_block (two full poly muls for error bounds)
use doubles for faster error bounds in fmprb_poly_mullow_block2
Merge branch 'master' into arithmetic