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/apps/search/test/marionette/fixtures/installed_app/index.html

@@ -0,0 +1,10 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <meta http-equiv="content-type" content="text/html; charset=utf-8" />
+  <title>iwrotethis</title>
+</head>
+<body>
+<div id="test-app"></div>
+</body>
+</html>

gaia/apps/search/test/marionette/fixtures/installed_app/manifest.webapp

@@ -0,0 +1,15 @@
+{
+  "name": "Calendar2",
+  "description": "Just a dummy app for testing what happens when we install something.",
+  "launch_path": "/index.html",
+  "developer": {
+    "name": "The Gaia Team",
+    "url": "https://github.com/mozilla-b2g/gaia"
+  },
+  "locales": {},
+  "default_locale": "en-US",
+  "icons": {
+    "128": "/style/icons/Blank.png"
+  }
+}
+