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/verticalhome/manifest.webapp

@@ -0,0 +1,67 @@
+{
+  "version": "2.7",
+  "name": "Legacy Home Screen",
+  "description": "Gaia Home Screen.",
+  "launch_path": "/index.html",
+  "type": "certified",
+  "role": "homescreen",
+  "developer": {
+    "name": "The Gaia Team",
+    "url": "https://github.com/mozilla-b2g/gaia"
+  },
+  "permissions": {
+    "themeable": {},
+    "mobileconnection": {},
+    "open-remote-window": {},
+    "webapps-manage": {},
+    "systemXHR": {},
+    "settings": {
+      "access": "readwrite"
+    },
+    "moz-extremely-unstable-and-will-change-webcomponents": {}
+  },
+  "default_locale": "en-US",
+  "locales": {
+    "en-US": {
+      "name": "Legacy Home Screen",
+      "description": "Gaia Home Screen."
+    },
+    "fr": {
+      "name": "Écran d’accueil",
+      "description": "Écran d’accueil de Gaia"
+    }
+  },
+  "icons": {
+    "84": "/style/icons/vertical_84.png",
+    "126": "/style/icons/vertical_126.png",
+    "142": "/style/icons/vertical_142.png",
+    "189": "/style/icons/vertical_189.png",
+    "284": "/style/icons/vertical_284.png"
+  },
+  "orientation": "default",
+  "datastores-access": {
+    "bookmarks_store": {
+      "readonly": false,
+      "description": "Display bookmarks"
+    }
+  },
+  "datastores-owned": {
+    "vertical_preferences_store": {
+      "access": "readwrite",
+      "description": "Stores preferences"
+    },
+    "verticalhome_items_migration": {
+      "access": "readwrite",
+      "description": "Stores grid item configuration"
+    }
+  },
+  "connections": {
+    "verticalhome-migrate": {
+      "handler_path": "/index.html",
+      "description": "Exports settings and switches home screen",
+      "rules": {
+        "minimumAccessLevel": "certified"
+      }
+    }
+  }
+}