Fix issue #87: ulabel to alabel fails on stringprep_locale_to_utf8.
Fix issue #87: ulabel to alabel fails on stringprep_locale_to_utf8.

dkg/getdns,smogali/getdns,huitema/getdns,huitema/getdns,glenwiley/getdns,smogali/getdns,Acidburn0zzz/getdns,shane-kerr/getdns,glenwiley/getdns,smogali/getdns,huitema/getdns,shane-kerr/getdns,huitema/getdns,smogali/getdns,Acidburn0zzz/getdns,dkg/getdns,glenwiley/getdns,Acidburn0zzz/getdns,shane-kerr/getdns,dkg/getdns,shane-kerr/getdns,glenwiley/getdns,dkg/getdns,Acidburn0zzz/getdns