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/test-receiver-inline/manifest.webapp

@@ -0,0 +1,25 @@
+{
+  "name": "Test receiver (inline)",
+  "description": "Dummy app to respond to Test web activities",
+  "launch_path": "/index.html",
+  "developer": {
+    "name": "The Gaia Team",
+    "url": "https://github.com/mozilla-b2g/gaia"
+  },
+  "activities": {
+    "test": {
+      "filters": {
+        "type": "inline"
+       },
+      "disposition": "inline",
+      "returnValue": true
+    }
+  },
+  "icons": {
+    "84": "/style/icons/test-receiver_84.png",
+    "126": "/style/icons/test-receiver_126.png",
+    "142": "/style/icons/test-receiver_142.png",
+    "189": "/style/icons/test-receiver_189.png",
+    "284": "/style/icons/test-receiver_284.png"
+  }
+}