auth_[realm|username|password]_avp parameters moved from UAC module to UAC_AUTH; the UAC_AUTH module is responsible for handling all the credentials (static or dynamic).
 B2B module gets visibility to credentials defined via AVPs.
This patch implements several fixes to the SST module:

 - Fixed things when only one peer supports Session-Timers.
 - Fixed timer removal when both peers do not support Session-Timers and a
   timer was fired at some point.
 - Fixed Session-Timers usage in case of re-INVITES.
 - Allow the proxy to negotiate a lower Session-Expires value if configured
   to do so.
Fixed SST timer being reset to the lowest value on session refresh.

Conflicts:

	modules/sst/sst_handlers.c
Trigger exactly one callback per early state change.

There are several reasons behind this change:
1) Other callbacks are only triggered once for each state change.
2) SNOM phones send several 180 Ringing messages in a row. That triggers
several early dialog callbacks, which in turn trigger several PUBLISH
and NOTIFY through the pua_dialoginfo module. This can potentially lead
to problems.
fixed compile errors introduced by previous commit
(cherry picked from commit 2a6542a230dca3e0078a89db6aca2509d1cef41e)

Conflicts:

	modules/sst/sst_handlers.c
Added async TCP support
Currently only support for POLL and EPOLL polling methods
Added tcp_async, tcp_async_local_connect_timeout, tcp_async_local_write_timeout and tcp_async_max_postponed_chunks script options for configuring async TCP
Added tcp_max_msg_chunks and tcp_max_msg_time script options for configuring overall TCP reading
Remove html file added in commit 7f22da1f69
Improved PUA DialogInfo.

Several fixes here:
  - Dialog callbacks are now correctly setup after a restart of
    OpenSIPS. In other words, restarting OpenSIPS will not lead to ghost BLFs
    anymore.
  - Added an option allowing not to publish state change in case of reINVITE.
  - Added an option allowing not to publish state change in trying state.
    In other words, a PUBLISH will be sent only when OpenSIPS has received a
    18x response type and not before.
Added a new module for performing voice transcoding using Sangoma D-series cards.
(libsngtc_node dependency)
added credits for 1.10
updated ChangeLog for 1.10
updated devel specs to 1.11
wrong mpath folder (detected by rpmbuild)

change modules-prefix (tmp folder) to modules-target (installation folder)
Update Centos spec file

Some new rpm optional modules are added:
mi_xmlrpc_ng,sngtc,db_cachedb,mathops,rest_client
Fixed goes_to_gw, is_from_gw and dr_is_gw so that they accept negative
gateway types ( to match all gw types)
Properly mentioned Steve Frécinaux from Be IP as the module creator
Fixed warning
Fixed compilation error for libcurl < 7.16.2 ( due to CURLOPT_TIMEOUT_MS )
Fixed crash if send_subscribe fails early

In that case presentity is still NULL, check for it
Cleanup menucnfig files when doing make proper
Fixed compilation in systems without EPOLL