load time:
first load config default settings
merge any settings in XML

run time:
merge any dynamic settings

FS-11226: [freeswitch-core,mod_conference] Missing font files can lead to crash in conference #resolve

FS-11211: [Verto-Communicator] Add turnServer and verto server fallback options -- FS side to only do relay as a last resort #resolve

Check value of sanity while looping over
switch_cache_db_get_db_handle_dsn() in switch_user_sql_thread.

Erroneous DLSR in received RTCP report could
cause RTT to be negative (RTT = A - DLSR - LSR).
Add check for this and prevent corruption
of statistics and estimations (estimator code used
bad RTT values).