Upgrade to Asterisk 11.5.0: this is a general bug fix release

pkgsrc changes:
  - add dependency on libuuid
  - work around NetBSD's incompatible implementation of IP_PKTINFO

The Asterisk Development Team has announced the release of Asterisk 11.5.0.

The release of Asterisk 11.5.0 resolves several issues reported by the
community and would have not been possible without your participation.
Thank you!

The following is a sample of the issues resolved in this release:

* --- Fix Segfault In app_queue When "persistentmembers" Is Enabled
      And Using Realtime

* --- IAX2: fix race condition with nativebridge transfers.

* --- Fix The Payload Being Set On CN Packets And Do Not Set Marker
      Bit

* --- Fix One-Way Audio With auto_* NAT Settings When SIP Calls
      Initiated By PBX

* --- chan_sip: NOTIFYs for BLF start queuing up and fail to be sent
      out after retries fail

For a full list of changes in this release, please see the ChangeLog:

http://downloads.asterisk.org/pub/telephony/asterisk/ChangeLog-11.5.0

Thank you for your continued support of Asterisk!

(jnemeth)