WEB: Changes to the main website

1. Remove mentioning that we host downloads on sf.net
2. Direct to our Wiki for compiling directions.
3. Game downloads has been a separate page for couple of years.
4. We prefer PRs on github over patches

lang/lang.ini

@@ -88,13 +88,13 @@ contactTrackers = """
 </p>
 <p>
     Finally, if you have made a modification to the ScummVM source code and want to see it merged back into the ScummVM main line,
-    you can use our <a href="http://sourceforge.net/p/scummvm/patches/">patch tracker</a> for that.
+    you can file a Pull Request on our <a href="https://github.com/scummvm/scummvm/pulls">github page</a> for that.
 </p>
 """
 contactListsHeader = "Mailing lists"
 contactLists = """
 <p>
-    There are three ScummVM related  <a href="http://sourceforge.net/p/scummvm/mailman/">mailing lists</a>.
+    There are three ScummVM related <a href="http://sourceforge.net/p/scummvm/mailman/">mailing lists</a>.
     Two of them are for automated content only. The one where you can send emails to yourself is scummvm-devel.
 </p>
 """
@@ -121,10 +121,10 @@ downloadsContentTitle = "Download ScummVM"
 # downloads.tpl
 downloadsHeader = "Navigation"
 downloadsContentP1 = """
-Downloads are mostly hosted with SourceForge.net. If you have one of the supported systems, you can directly
+If you have one of the supported systems, you can directly
 download the appropriate binary distribution. If you have another system, download the source and read the
-<a href="http://github.com/scummvm/scummvm/blob/v{release}/README">README</a>
-file for directions on how to build ScummVM.
+<a href="http://wiki.scummvm.org/index.php/Compiling_ScummVM">Compiling ScummVM</a> page on our Wiki
+for directions on how to build ScummVM.
 If you have successfully ported ScummVM to a platform not listed, please drop us a note, telling which OS, etc.
 you used.
 """
@@ -139,7 +139,7 @@ are doing), please see the <a href="downloads/#daily">Daily Builds</a>
 section, near the end of this page.
 """
 downloadsContentP4 = """
-Also below are the <a href="downloads/#extras">Extras</a>. These currently
+Also there is a separate <a href="games/">Game downloads page</a>. These currently
 include seven freeware games 'Beneath a Steel Sky', 'Dreamweb', 'Flight of the Amazon Queen',
 'Lure of the Temptress', 'Drascula: The Vampire Strikes Back', 'Soltys' and 'Sfinx',
 along with cutscene packs recommended for use when playing some versions of the Broken