Update references to sourceforge.net

Replace references to audacity.sourceforge.net with the new
audacity web site, and also bug report emails in configure scripts
and readme files.

help/audacity.1

@@ -160,21 +160,21 @@ LGPL and BSD licenses.
 
 For details of known problems, see the release notes and the audacity wiki:
 .br
-http://www.audacityteam.org/wiki/index.php?title=Known_Issues
+http://wiki.audacityteam.org/wiki/Known_Issues
 
 To report a bug, see the instructions at
 .br
-http://www.audacityteam.org/wiki/index.php?title=Reporting_Bugs
+http://wiki.audacityteam.org/wiki/Reporting_Bugs
 
 .SH AUTHORS
 Project leaders include Dominic Mazzoni, Matt Brubeck,
 James Crook, Vaughan Johnson, Leland Lucius, and Markus Meyer,
 but dozens of others have contributed, and Audacity would not
-be possible without wxWindows, libsndfile, and many of
+be possible without wxWidgets, libsndfile, and many of
 the other libraries it is built upon.  For the most recent list
 of contributors and current email addresses, see our website:
 
-http://audacity.sourceforge.net/about/credits/
+http://www.audacityteam.org/about/credits/
 
 .\" arch-tag: 204d77ab-73cf-42b1-b5bd-e6f07e660496
 

help/audacity.appdata.xml

@@ -18,10 +18,10 @@
 	<li>Apply a wide range of other effects to audio recordings</li>
 	</ul>
   </description>
-  <url type="homepage">http://audacity.sourceforge.net/</url>
+  <url type="homepage">http://www.audacityteam.org/</url>
   <screenshots>
-    <screenshot type="default">http://audacity.sourceforge.net/about/images/audacity-linux.png</screenshot>
-    <screenshot>http://audacity.sourceforge.net/about/images/recording.png</screenshot>
+    <screenshot type="default">http://www.audacity.audio/wp-content/uploads/2016/01/audacity-212-linux.png</screenshot>
+    <screenshot>http://www.audacity.audio/wp-content/uploads/2015/11/Recording-with-Audacity-212.png</screenshot>
   </screenshots>
   <updatecontact>audacity-devel@lists.sourceforge.net</updatecontact>
 </application>