Finish prefix-ccwcount
More update channel counts and residual counts to use U32
Add hthreads.lo to .gitignore
Revert mpc_display_stuff to show ASCII first, then EBCDIC.

For consistency with other functions that display both ASCII and EBCDIC
in messages.
Prevent some compiler warnings.
Use cached copy of thread handle in getrusage for Windows.
Finish getrusage-windows