Going back to original Makefile for compatibility with current systems.
Added user and password for H.323 gatekeeper.
Added expire, Compat, and ResultFile to SIP Register.
Changed ring interval from 5 seconds to 6 seconds.
Fix for handling lost high speed data packets.
Changing version to 3.0.0.
Added information about versions and new authors.
Changes for t38modem to work with Opal 3.10.11

Includes a Busy Fix -- When we are busy we now set the cause code
to EndedByLocalBusy instead of EndedByLocalUser.

Changed version to 3.11.0. The first number in the version will
track the second number in Opal, where 3 -> 10 and 4 -> 12.  The
second number in version will track the third number in Opal exactly.

Also changed Makefile back to the pkgconfig version.
Merge pull request #1 from PeteDavidson/master

Merged 3.0.0 Pull Request