Refactored HostList to better support bookmarking.

remoting/webapp/me2mom/_locales/en/messages.json

 {
   "ACCESS_CODE": {
     "message": "Access code",
     "description": "Label for the access code entry box. This is where the client user enters the code that permits access to the host."
   },
   "ACCESS_CODE_TIMER": {
     "message": "This access code will expire in $timeout$",
     "description": "Text displayed when the access code is due to time out within 30 seconds.",
     "placeholders": {
       "timeout": {
@@ skipping 85 matching lines @@
     "description": "Error displayed if an invalid access code is entered."
   },
   "ERROR_MISSING_PLUGIN": {
     "message": "Some components required for Chromoting are missing. Please make sure you're running the latest version of Chromium and try again.",
     "description": "Error displayed if the client plugin fails to load."
   },
   "ERROR_NO_RESPONSE": {
     "message": "The server failed to respond to the network request.",
     "description": "Error displayed by the client if the server does not respond to a network request."
   },
+  "ERROR_UNEXPECTED": {
+    "message": "An unexpected error occurred. Please report this problem to the developers.",
+    "description": "Error displayed in situations where things go wrong in ways not anticipated by the developers. There is typically no user-workaround to suggest, other than reporting the error so that we can investigate further."
+  },
   "FOOTER_WAITING": {
     "message": "waiting for connection\u2026",
     "description": "Footer text displayed at the host after an access code has been generated, but before a client connects."
   },
   "HELP": {
     "message": "Help",
     "description": "Help link, displayed in the top-left (assuming ltr layout) corner of the main screen. Clicking this takes the user to our FAQ."
   },
   "HOME_ACCESS_BUTTON": {
     "message": "Access Now",
@@ skipping 91 matching lines @@
   },
   "TOOLTIP_SCALING": {
     "message": "Scale to fit",
     "description": "The tool-tip shown when the user hovers over the scale to fit button. Clicking this button toggles between scaling down the remote desktop to fit it inside the Chromium browser window and displaying it at 1:1 scale."
   },
   "WARNING_NAT_DISABLED": {
     "message": "NOTE: Policy settings permit connections only between computers within your network.",
     "description": "Message displayed at the bottom of the host screen if local policy dictates that NAT traversal is disabled, meaning that connections outside the local network will not work."
   }
 }