backport from trunk (rev #9778)
- fixed a bug in the lb_count_call() function
backport from trunk (rev #9780)
- the specific search group for lb_is_destination() must accept pvars
backport from trunk (rev #9782):
- fixed bug - do not try to apply lumps to the dummy sip reply which is constructed by the b2b_entities module
  Reported by Nick Altmann
pi_http: remove unused variable
 - backport from trunk (rev# 9784)
pi_http: remove unused variable
 - backport from trunk (rev# 9786)
backport from trunk (rev #9789):
- fixed missing braket in SCTP code
- fixed some warnings in SCTP code
  Reported by Muhammad Shahzad
backport from trunk (rev #9793):
- fixed bug in marking as used (in a LB failover scenario) the destinations with IDs bigger than 8.
  Thanks to Seth Schultz for reporting and help with troubleshooting
- fixed help text for "db migrate"
- fixed URL for module docs
Backported from trunk (rev #9804):
Fixed ratelimit bug where the counter reaches -1
Reported by Matt Williams
Closes bug #3603732
backport from trunk (rev #9809)

automatically set TLS=1 when using menuconfig to enable USE_TLS
backport from trunk (rev #9812):
route_to_carrier() and route_to_gw() must accept both pvars and strings as parameters
backport from trunk (rev #9813):
- fixed loading data from db - do not discard GW/Carriers if no rules - we can do routing directly to a carrier (route_to_carrrier() )
  Reported by Nick Altmann
    Closes bug #3605439