resip/stack: handle SIP outbound ping in WebSocket frame (contributed by Chandrika Parimoo, adapted for new WebSocket de-framing loop)

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/main@10207 ddefafc4-47db-0310-ae44-fa13212b10f2
reTurn: read user/password data from a file specified by UserDatabaseFile (contributed by Catalin Usurelu)

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/main@10208 ddefafc4-47db-0310-ae44-fa13212b10f2