[rt-users] Adding another extension

[Jerrad Pierce]

> This is not an RT extension, just a perl modules. Install perl module
> graphiz from cpan (or apt-get install libgraphviz-perl under debian),
> restart apache and your tickets relation ships graph should work.

The graphs you are referring to are ticket relationships,
which does require graphviz. Ken asked about Gantt
charts though. I wasn't aware of anything offering this
using graphviz, but the Timeline extension I pointed out
uses the Simile JavaScript library to offer something close.