freetdm: ftmod_analog_em: If the destination number DTMF was already generated, do not generate it again
         This bug was cause when answer-supervision is used because now we do not move from DIALING to UP
         as soon as the line is ringing, but instead we wait for the CAS bit change

The Siren code is non-free per DFSG, and the ILBC code is under
unclear licensing until we upgrade to the WebRTC version.

         You must add answer-supervision=yes in your freetdm.conf.xml
         Also added dial-timeout parameter which was previously hard-coded

         Handle driver events while reading media

         ftmod_analog_em:
         Initialize read data len to avoid crashing when
         the freetdm read function does not read anything

Previously we were using /var/run/freeswitch.

Julian pointed out that someone may actually want to keep information
around in the home directory.  For Gemeinschaft they need to keep the
.odbc.ini file here.

Thanks-to: Julian Pawlowski <julian.pawlowski@gmail.com>

Serious thanks go out to Philip Hands for doing this detailed license
accounting that very surely would never otherwise have been done.

Thanks-to: Philip Hands <phil@hands.com>
Signed-off-by: Travis Cross <tc@traviscross.com>

Using this command to find errors in what we have
license-reconcile 2>&1 | grep -v "'\(\|HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\|OWNER\|ownership\|2, RSA Data Security, Inc. Created 1991. All\|statement and\|by\|HOLDERS BE LIABLE FOR ANY\|HOLDERS AND CONTRIBUTORS\|OWNER OR CONTRIBUTORS BE\|{\|holder nor the names of contributors\)'"