XX-11232: Fix for STUN binding requests interpreted by SIP transport as EOF reads
XX-11232:  Added initializers for _ignoreLastRead
XX-11240 - fixed NAT TRAVERSAL settings for Grandstream phones.
XX-11236 - fixed a bug preventing Grandstream phones to autoprovision on http
XX-11265:  GRUU nomalization done early in the proxy.  This won't require the extra hop to the registrar anymore
XX-11265:  Updated comment and added some warning logs.