Start integrating with native size support in NQP.
Fix braino. NativeHOW sent bad data to the REPR compose.
Merge branch 'nom' into dyncall-sized-num
Make NativeHOW set float as well as integer bitsize.

Since NativeHOW is used for all native types (int, num, str) we don't know a
priori whether we're setting the bitwidth of an int of a float. So we set
both.
Update sixmodelobject.h.
Merge remote-tracking branch 'origin/dyncall-sized-num' into nom
Bump NQP_REVISION for natives improvements.