add XDOMStorageHelper for App share setting data

http://twiki.polyvi.com/twiki5/bin/view/Dev/ProjApolloWP8AppSendMessage
fixed XHRHelper get basePath error

ie: root=x-wmapp0:xface\\helloxface\\index.html;
var basePath = root.substr(0,root.lastIndexOf('/')) + '/';
get basePath will error.
we should  replace "\\"  with "/" before  get basepath
Squashed 'cordova-wp8/' changes from 0e2d032..b348feb

b348feb added readme to WP7 for deprecation notice
b34531c added some formatting
cd84989 Deprecated WP7
96b1497 Update JS and VERSION to the latest, back on the dev branch
2171cd6 CB-802 WP8 ConsoleHelper outputs all console.log calls to isolated storage file for watching with CordovaDeploy tool
9106996 CB-802 output console.log to cordova-cli run command
06ce73e updated master js
4e246ee CB-5360 fix compiler whinings
fd6cb9c CB-5360 fix compiler warnings
4ea5ef8 CB-4538 copy check_reqs scripts in create script
5722f27 CB-4538 copy check_reqs scripts
22ef68d CB-4103 Make config parameter checks case-insensitive WP7+WP8
ea812f8 CB-2347 Add support for config.xml preference: fullscreen

git-subtree-dir: cordova-wp8
git-subtree-split: b348feb18681f25d90d0be838e0357dffcf8c3a7
Merge commit 'e7e3350880242d848632b699f21e43b77d1e343a' into syncCordova