- All `ht_*_new0()` are removed
- `freefn` field of HT options was renamed to `finiKV`
- `finiKV_user` fields was added to HT options
- Added `ht_*_new_opt_size` API
- `HtSP` and `HtUP` are created with `ValueFree` callback that allows to reduce extra LOC and prevent bugs
- `SetP` replaced with `SetS` (based on `HtSP`)
- `rz_th_ht_*_new0()` and `rz_th_ht_*_new_opt()` are replaced with `rz_th_ht_*_new(HtXX *)`