Various fixes, among which:

- Fixed segfault when attempting to initialseek on disconnected streams
- Fix 100% CPU bug in controller's stats code
- WebRTC UDP bind socket improvements
- Several segfault fixes
- Increased packet reordering buffer size from 30 to 150 packets
- Tweaks to default output/buffer behaviour for incoming pushes
- Added message for load balancer checks
- Fixed HLS content type
- Stats fixes
- Exit reason fixes
- Fixed socket IP address detection
- Fixed non-string arguments for stream settings
- Added caching for getConnectedBinHost()
- Added WebRTC playback rate control
- Added/completed VP8/VP9 support to WebRTC/RTSP
- Added live seek option to WebRTC
- Fixed seek to exactly newest timestamp
- Fixed HLS input

# Conflicts:
#	lib/defines.h
#	src/input/input.cpp

lib/ts_packet.h

@@ -245,6 +245,8 @@ namespace TS{
 
   extern char PAT[188];
 
+  size_t getUniqTrackID(const DTSC::Meta &M, size_t idx);
+
   const char *createPMT(std::set<unsigned long> &selectedTracks, const DTSC::Meta &M, int contCounter = 0);
   const char *createSDT(const std::string &streamName, int contCounter = 0);