Differentiate when the sms message successfully matched an extension in the chatplan, and when it fell through.

Fire an event on successful sms delivery, as well as clearify if the delivery method was blocking or not.

get an EOP, we no longer worry whether the final stages tidy up. This helps
tolerate the increasing number of VoIP calls which hang up before the audio has
flushed down the line.

A few little cleanups.

Use peerhangup flag variable to track whether a hangup has been
initiated by the peer or libpri itself (e.g. Layer 2 timeouts).

These changes fix a couple of problems with hangup events not being
handled properly in some situations:

  - Call abort caused by incoming RESTART on a channel in use
  - T309 timeout after L2 loss
  - Improved hangup handling in libpri-side on_hangup() event handler
    and state_advance() (FreeTDM side)
Signed-off-by: Stefan Knoblich <stkn@openisdn.net>

FS-4263 --resolve

By building globally with -fPIC we can get mod_flite to build.

FS-4818: --resolve use portable sed construct even though this script is not intended to be called on any platform where this matters

put running_state in the channel event rather than the state so presence events reflect the current state of the channel and not the one that was possibly changed during the last state