Publish Vulpes Preview 15 sources for desktop, Android and Tundra

Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.

gaia/dev_apps/share-receiver/index.html

@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1">
+    <meta charset="utf-8">
+    <title>Share Receiver</title>
+    <script src="js/share-receiver.js"></script>
+  </head>
+  <body>
+    <h1>Shared Images</h1>
+    <p><i>This test app is here for so that the gallery app will have
+    someone to share images with</i></p>
+    <button id='ok'>Ok</button>
+  </body>
+</html>