Bug#492867: libpri - new upstream version

[Faidon Liambotis]

Kevin Shanahan wrote:
> New version 1.4.6 has been released upstream.
> 
> Currently trying to debug some nasty ISDN PRI issues with Asterisk, so
> it would be useful to have this package at the latest version to
> ensure we have the latest fixes.
We are aware of it.

Unfortunately, a) we are on a freeze, b) it adds BRI support which may 
break (or at least change stuff) with the bristuff patch.

This will have to wait for post-lenny.

Thanks,
Faidon