Minor tweak to keep the end appengine-web.xml out of the git repo
Adding to the readme, gitignore so Constants never gets commited
Removing constants from the repo
Minor rename of the google-signin-clientid meta tags
Updating the README to match new meta tag theme
Sorting out some bits to get the build, altering the readme too and stripping some stuff out from the repo commit and adding to gitignore
Merge pull request #34 from GoogleChrome/v2-matt

Editing of the v2 Readme and some minor tweaks