Merge from vendor branch TNF:

Merge from vendor branch TNF:
Import Asterisk 10.0.0:

The Asterisk Development Team is proud to announce the release of
Asterisk 10.0.0. This release is available for immediate download
at http://downloads.asterisk.org/pub/telephony/asterisk/

Asterisk 10 is the next major release series of Asterisk. It will
be a Standard support release, similar to Asterisk 1.6.2. For more
information about support time lines for Asterisk releases, see
the Asterisk versions page:

   https://wiki.asterisk.org/wiki/display/AST/Asterisk+Versions

With the release of the Asterisk 10 branch, the preceding '1.' has
been removed from the version number per the blog post available
at

http://blogs.digium.com/2011/07/21/the-evolution-of-asterisk-or-how-we-arrived-at-asterisk-10/

The release of Asterisk 10 would not have been possible without
the support and contributions of the community.

You can find an overview of the work involved with the 10.0.0
release in the summary:

http://svn.asterisk.org/svn/asterisk/tags/10.0.0/asterisk-10.0.0-summary.txt

A short list of available features includes:

* T.38 gateway functionality has been added to res_fax.
* Protocol independent out-of-call messaging support. Text messages not
   associated with an active call can now be routed through the Asterisk
   dialplan. SIP and XMPP are supported so far.
* New highly optimized and customizable ConfBridge application capable
   of mixing audio at sample rates ranging from 8kHz-192kHz
* Addition of video_mode option in confbridge.conf to provide basic video
   conferencing in the ConfBridge() dialplan application.
* Support for defining hints has been added to pbx_lua.
* Replacement of Berkeley DB with SQLite for the Asterisk Database (AstDB).
* Much, much more!

A full list of new features can be found in the CHANGES file.

   http://svn.asterisk.org/svn/asterisk/branches/10/CHANGES

Also, when upgrading a system between major versions, it is imperative
that you read and understand the contents of the UPGRADE.txt file,
which is located at:

   http://svn.asterisk.org/svn/asterisk/branches/10/UPGRADE.txt

Thank you for your continued support of Asterisk!