Use a more specific Bugzilla URL

This URL filters the search results within the entire Eclipse.org
Bugzilla server to only this that are open and pertain to our
project.  It also sets up the "File a new bug" link to send any
new issue in our direction.

Change-Id: I5d50a2e7d0b34efb386492aedfe28f4ae67f92bc
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

pom.xml

@@ -76,7 +76,7 @@
   </mailingLists>
 
   <issueManagement>
-    <url>https://bugs.eclipse.org/bugs/</url>
+    <url>https://bugs.eclipse.org/bugs/buglist.cgi?query_format=advanced;component=JGit;product=EGit;classification=Technology</url>
     <system>Bugzilla</system>
   </issueManagement>