RequestTracker Plugin

Request Tracker Plugin by Chris Jones <cmsj@tenshu.net>

* What is this plugin?
 * This is a plugin for quickly opening tickets in instances of Best Practical's ticket tracking 
    software, Request Tracker.
* How do I use it?
 * /!\ Before you can use this plugin you must go into the GNOME Do Preferences and 
   configure the plugin to know about one or more instances of RT that you have access to.
 * Select some text (typically a number) somewhere on your system, invoke GNOME Do, 
   start typing "request tracker" and the plugin will be selected, then if you want to change 
   between multiple instances of RT press Tab to move to the third Do pane and select the
   correct instance. Hit Enter and your web browser will display the ticket you selected.

Notes:

* You can select text around the ticket number, e.g. selecting "#12345." will still take you to
   ticket 12345. The plugin automatically filters out any characters that aren't numbers.