dev-manual, mega-manual: Updated downloads figure and some links.

Found a couple broken links.  Also, noticed the yp-download figure
was out of date.  Especially in the Figures folder of the mega-manual.

(From yocto-docs rev: 2e55faca221186d157dd5f77d048f1b2b90d5d91)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/dev-manual/dev-manual-newbie.xml

@@ -254,9 +254,9 @@
                 <listitem><para><ulink url='http://sitaramc.github.com/gitolite/master-toc.html'>The <filename>gitolite</filename> master index</ulink>:
                     All topics for <filename>gitolite</filename>.
                     </para></listitem>
-                <listitem><para><ulink url='http://hjemli.net/git/cgit/tree/README'><filename>cgit</filename> index</ulink>:
-                    A <filename>README</filename> file on how to create a
-                    fast web interface for Git.</para></listitem>
+                <listitem><para><ulink url='https://git.wiki.kernel.org/index.php/Interfaces,_frontends,_and_tools'>Interfaces, frontends, and tools</ulink>:
+                    Documentation on how to create interfaces and frontends
+                    for Git.</para></listitem>
             </itemizedlist>
         </note>
     </section>
@@ -275,9 +275,8 @@
         </para>
 
         <para>
-            See "<ulink url='http://autobuilder.yoctoproject.org:8010/'>Welcome to the buildbot for the Yocto Project</ulink>"
-            for the Yocto Project's reference implementation that uses
-            buildbot.
+            See "<ulink url='http://autobuilder.yoctoproject.org'>Yocto Project Autobuilder</ulink>"
+            for more information and links to buildbot.
             The Yocto Project team has found this implementation
             works well in this role.
             A public example of this is the Yocto Project
@@ -394,7 +393,7 @@
                     For some guidance on mailing lists to use, see the list in the
                     "<link linkend='how-to-submit-a-change'>How to Submit a Change</link>"
                     section.
-                    For a description of the available mailing lists, see
+                    For a description of the available mailing lists, see the
                     "<ulink url='&YOCTO_DOCS_REF_URL;#resources-mailinglist'>Mailing Lists</ulink>"
                     section in the Yocto Project Reference Manual.
                     </para></listitem>