rutil: compat.hxx: revert the core stdint change, leaving other enhancements intact

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/main@10615 ddefafc4-47db-0310-ae44-fa13212b10f2
rutil: resipfaststreams: use casts with arguments to LTOA

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/main@10616 ddefafc4-47db-0310-ae44-fa13212b10f2