docs: update some broken/old links

Signed-off-by: Brian Paul <brianp@vmware.com>

docs/faq.html

@@ -389,7 +389,7 @@ algorithms).
 </p>
 <p>
 In the mean time, a 3rd party <a href=
-"http://homepage.hispeed.ch/rscheidegger/dri_experimental/s3tc_index.html"
+"http://dri.freedesktop.org/wiki/S3TC"
 target="_parent">plug-in library</a> is available.
 </p>
 

docs/repository.html

@@ -10,7 +10,7 @@
 <h1>Code Repository</h1>
 
 <p>
-Mesa uses <a href="http://git.or.cz/"target="_parent">git</a>
+Mesa uses <a href="http://git-scm.com"target="_parent">git</a>
 as its source code management system.
 </p>
 
@@ -95,7 +95,7 @@ Once your account is established:
 <h2>Windows Users</h2>
 
 <p>
-If you're <a href="http://git.or.cz/gitwiki/WindowsInstall" target="_parent">
+If you're <a href="http://git.wiki.kernel.org/index.php/WindowsInstall" target="_parent">
 using git on Windows</a> you'll want to enable automatic CR/LF conversion in
 your local copy of the repository:
 </p>

docs/sourcedocs.html

@@ -24,7 +24,7 @@ the <code>doxygen</code> directory and run <code>make</code>.
 
 <p>
 For an example of Doxygen usage in Mesa, see a recent source file
-such as <a href="http://webcvs.freedesktop.org/mesa/Mesa/src/mesa/main/bufferobj.c?view=markup" target="_parent">bufferobj.c</a>.
+such as <a href="http://cgit.freedesktop.org/mesa/mesa/tree/src/mesa/main/bufferobj.c" target="_parent">bufferobj.c</a>.
 </p>
 
 

docs/thanks.html

@@ -33,7 +33,7 @@ Tungsten Graphics, Inc. have supported the ongoing development of Mesa.
 <br>
 <br>
 <li>The
-<a href="http://sourceforge.net/projects/mesa3d" target="_parent">Mesa</a>
+<a href="http://www.mesa3d.org" target="_parent">Mesa</a>
 website is hosted by
 <a href="http://sourceforge.net" target="_parent">
 <img src="http://sourceforge.net/sflogo.php?group_id=3&amp;type=1"

docs/utilities.html

@@ -17,7 +17,7 @@ progs/util/ directory
 <li>Allen Akin's <a href="http://glean.sourceforge.net/"
 target="_parent">glean</a> is a framework for OpenGL testing.
 
-<li><a href="http://developer.kde.org/~sewardj/"
+<li><a href="http://www.valgrind.org"
 target="_parent">Valgrind</a> is a very useful tool for tracking down
 memory-related problems in your code.