MERGE: 3ee4395de8f3f0e24762ac94b922cf219cce7aa4

* [FIX] FPNR-382 - WCS client fallback to RTMFP doesn't work.
[MERGE] 1b5e4b17fee0185162483d14000bc5a5041f6903

* [ADD] FPNR-371, added tel uri support.
[MERGE] e00c54c994a1e303fff11b291b18b300a6bc6a62

* [FIX] FPNR-372, message doubles at receiving side.
[MERGE] 5e0f29ad8bd4619378a445d48f95cab5c6bd3940

* [ADD] FPNR-367, add msrp support to FLASH api.
[MERGE] 554dfc77f1a6c1fb4ccdff2c0a2be43e55a0f9ec

* [ADD] Send SIP headers to WCS client upon Register.
[MERGE] 4a4f5e4e821718ae1ea71688cae173a3ded295ce

* [ADD] FPNR-374 - add config property to force WebRTC or flash API.
[MERGE] 1f8ef6b7e06a3b05fe16918c5d0b231bd88d2a43

* WSS Support
[MERGE] 24812b813fe79e5cfc5e9d07f6924931c317c002

* [FIX] Fallback client support in Safari.
[MERGE] 7532b6d7daaa64bca31b1a02fe1a54c5f819caf1

* [FIX] Fixed Caller-ID display information.
[MERGE] 4af24589cb63b68e8200da0920691c99a1e488d1

* [FIX] Stop ringing sound.
[MERGE] f5330347e188bc14b6fcb47058601553e9d8dd14

* [ADD] Service messages filter.
[MERGE] 401c7a4c4a8dc83c08b98a78d7dd7b12d41e60b3

* [ADD] Added new content type for service messages.
[MERGE] 1917136b6b63dff7eb39a654ef420304af9da1cb

* [ADD] FPNR-396, Add client side settings msg_content_type
[MERGE] 554d40a68655727914d842a9aeb1b87a7c6db73d

* [FIX] Load balancer does not work.
[MERGE] cef0e2915d19601559493c20b936567872c9c6ee

* [ADD] FPNR-409, Add wss port to load balancer response.
[MERGE] 3c7b5a9546fb586f75da49dd62abb4066bc52c1e

* [ADD] FPNR-417, add SDP filter.
[MERGE] 1f940c1ccb6287a84f50268cd9fe10a8dabdb444

* Removed <strip_codec> from default flashphoner.xml
[MERGE] 68964a81ec58acd60904bcac79bdbd2317e6bb8b

* [FIX] MCN processing, added unit tests
[MERGE] 5e5fb28224a75fc89d007b101fc7bc29b99da98d

* [ADD] Added sdp filter to callByToken function.
[MERGE]da3b875aee25be75d200409613ed76835dac4fbf

* [ADD] Added ability to change stun server address in flashphoner.xml