Fifth pass at adding key files

site/fitters/include_share.php

@@ -0,0 +1,17 @@
+<div class="social-networks">
+  <a href="http://twitter.com/share" class="twitter-share-button" data-text="<? echo($pagetitle); ?>" data-count="vertical" data-via="slowtwitch">Tweet</a>
+  <script type="text/javascript" src="http://platform.twitter.com/widgets.js"></script>
+
+  <div class="fb-like" data-href="<? echo(curPageURL()); ?>" data-send="false" data-layout="button_count" data-show-faces="false" data-font="verdana" data-action="like" data-share="false"></div>
+  <!-- Place this tag where you want the +1 button to render -->
+  <g:plusone></g:plusone>
+
+  <!-- Place this render call where appropriate -->
+  <script type="text/javascript">
+    (function() {
+      var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true;
+      po.src = 'https://apis.google.com/js/plusone.js';
+      var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s);
+    })();
+  </script>
+</div>