Add shortname back into manifest

Author: brockgr

src/manifest.json

@@ -1,10 +1,10 @@
 {
   "manifest_version": 2,
 
-  "name": "Tiling Window Manager for Chrome OS™",
-  "short_name": "",
-  "description": "Tiling Window Manager for Chrome OS™",
-  "version": "0.4",
+  "name": "Tiling Window Manager for Chrome OS\u2122",
+  "short_name": "chrometile",
+  "description": "Tiling Window Manager for Chrome OS\u2122",
+  "version": "0.5",
   "icons": {"128": "icon.png"},
 
   "permissions": [