Update Bugzilla links to point to GitLab in multiple places

README.md

@@ -102,13 +102,11 @@ that creates file `dist/Meld-VERSION-ARCH.msi`
 Contributing
 ------------
 
-Meld uses Bugzilla to track bugs, and user questions and development
+Meld uses GNOME's GitLab to track bugs, and user questions and development
 discussions happen on the Meld mailing list. The development team is small,
 and new contributors are always welcome!
 
-Report a bug:   https://bugzilla.gnome.org/enter_bug.cgi?product=meld
-
-List of bugs:   https://bugzilla.gnome.org/buglist.cgi?quicksearch=product%3A%22meld%22
+List of issues: https://gitlab.gnome.org/GNOME/meld/issues
 
 Mailing list:   https://mail.gnome.org/mailman/listinfo/meld-list
 

data/meld.appdata.xml.in

@@ -39,7 +39,7 @@
   </screenshots>
   <url type="homepage">http://meldmerge.org</url>
   <url type="help">http://meldmerge.org/help/</url>
-  <url type="bugtracker">https://bugzilla.gnome.org/enter_bug.cgi?product=meld</url>
+  <url type="bugtracker">https://gitlab.gnome.org/GNOME/meld/issues</url>
   <url type="donation">http://www.gnome.org/friends/</url>
   <url type="translate">https://wiki.gnome.org/TranslationProject</url>
   <update_contact>[email protected]</update_contact>

meld.1

@@ -101,7 +101,7 @@ Initiate a diff between FILE1 and FILE2, and a separate diff between FILE3 and
 FILE4.
 .SH BUGS
 If you find a bug, please report it at
-https://bugzilla.gnome.org/buglist.cgi?product=meld or mail a description of
+https://gitlab.gnome.org/GNOME/meld/issues or mail a description of
 the issue to [email protected].
 .SH AUTHORS
 See the AUTHORS text file in \fBmeld's\fR source code

meld.doap

@@ -15,7 +15,7 @@
   <homepage rdf:resource="http://meldmerge.org/" />
   <mailing-list rdf:resource="http://mail.gnome.org/mailman/listinfo/meld-list" />
   <download-page rdf:resource="http://download.gnome.org/sources/meld/" />
-  <bug-database rdf:resource="http://bugzilla.gnome.org/browse.cgi?product=meld" />
+  <bug-database rdf:resource="https://gitlab.gnome.org/GNOME/meld/issues" />
 
   <programming-language>Python</programming-language>