Address some signed/unsigned warnings reported by Thomas Zimmermann in https://bugzilla.mozilla.org/show_bug.cgi?id=970271
Address some signed/unsigned warnings reported by
Thomas Zimmermann in
https://bugzilla.mozilla.org/show_bug.cgi?id=970271

sukinull/usrsctp,CoolmanCZ/usrsctp,JlnWntr/usrsctp,sctplab/usrsctp,weinrank/usrsctp,sctplab/usrsctp,weinrank/usrsctp,bebo/usrsctp,CoolmanCZ/usrsctp,CoolmanCZ/usrsctp,sctplab/usrsctp,CoolmanCZ/usrsctp,faithfracture/usrsctp,liamstask/usrsctp,faithfracture/usrsctp,ossy-szeged/usrsctp,liamstask/usrsctp,ossy-szeged/usrsctp,saghul/usrsctp,faithfracture/usrsctp,JlnWntr/usrsctp,JlnWntr/usrsctp,bebo/usrsctp,saghul/usrsctp,weinrank/usrsctp,sukinull/usrsctp