Merge branch 'releases.3.4.experimental_head' into releases.3.5

diff --cc libs/freetdm/mod_freetdm/mod_freetdm.c
Simple merge

diff --cc libs/freetdm/src/ftdm_io.c
Simple merge

diff --cc libs/freetdm/src/ftmod/ftmod_sangoma_ss7/ftmod_sangoma_ss7_xml.c
Simple merge

diff --cc libs/freetdm/src/include/freetdm.h
Simple merge

diff --cc libs/freetdm/src/include/private/ftdm_core.h
Simple merge

diff --cc src/switch.c
Simple merge