ALLJOYN-1579: Fixed bad String reference in NameTable::RemoveAlias

Change-Id: Ie3051f2e0e9163ad6533c001a1ec27f9a486055b
MBUS-1591: bbsig crashes HandleAddressCandidatesResponse

Change-Id: I4fe5a8dfc0bfa70432e18d5c7e259c42d0f75ffa
MBUS-1592: bbsig crashes in stress mode in PacketEngine::RemovePacketStream

Change-Id: I3d78abb2694b876b2bfee51af17045b8e715ab0c