Adding cancelUser to browserid-identities and removing the work to sync emails from BrowserIDNetwork.

Also updated the globals declarations at the top of all the files to only declare the ones actually used for that file.

Since the relay is only two files, right now in compress.sh concatinating just those two files.

issue #265

Getting the host from the channel's origin.  The dialog registers itself with the relay frame, which calls a callback in the dialog that states what the origin is.

issue #251.

If a BrowserID dialog is already open for a tab when the user clicks on "Sign In", re-focus the original dialog.  This ensures that only one iframe is opened as well.

Fixes #242 and #243.

Setting up Vagrant for BrowserID

remove obsolete syncEmails functionality from persistence layer, tests, wsapi, and client libraries.  with certs the logic is much simpler and more efficient

purge all notion of 'pubkey' from json persistence layer, drastically simplifying the database structure

fix porting bug in mysql driver.  For stageEmail, the INSERT query errantly included references to 'pubkey'

no global dependencies and include jwcrypt using submodules

make npm test work right.  improve test.sh to ensure it's using the version of vows that the package is locked to and works both when invoked via npm and from cmdline