(thanks Sergey KHripchenko and Hervé Déprez for pointing these out)

* commit '317e197b':
  FS-11959: add switch_jb_get_packets_per_frame() - gets the number of packets per video frame

* commit '6a036e66':
  FS-11957: destroy NACK table on SWITCH_RTP_FLAG_KILL_JB too

* commit '863189fe':
  FS-11958: [core] add switch_core_media functions that deal with bw and bitrate

process all parts of key

* commit '1f4dbe50':
  FS-11955: JB: add stats for received packets that have been NACKed previously (video)

* commit 'f982b2b9':
  FS-11954: JB: change complete frames marker

* commit '718d2341':
  FS-11952: [Core] Fix memory leaks.

* commit '49e6449b':
  FS-11809: scan-build: dead assignments

* commit '54c58950':
  FS-11951: JB: rare crash in reading the chan var  (it maybe called without a session in some unit tests)

Merge pull request #1758 in FS/freeswitch from bugfix/FS-11950-fix-gcc8-errors-in-mod_pgsql to master

* commit '3fa1f3b7':
  FS-11950: [mod_pgsql] Fix gcc8 errors replacing strncpy with snprintf.