Make sure the screen does not jump around, add a cancel button.

Giving the "new email address" field a label.  Made the transition to show the new email address field smoother.

Making sure the correct buttons are shown when appropriate, smoothing out jumps.

issue #276

BrowserIDIdentities has the added advantage of adding the correct classname to the body.

This does no syncing if the user is authenticated.

Changing the signIn button in about.ejs from a button to an anchor.

Since we are autofocusing input elements, it gives a poor user experience because the text flashes.

Conflicts:
	browserid/static/include.js

fix issue where hash changes during dialog interaction would break things.  extract relay frame id from hash at load time.  closes #295

remove migrate_to_certs.sql from dev, it's not relevant anymore (its an ad-hoc step that's riding train-2011.09.22)

fix issue where hash changes during dialog interaction would break things.  extract relay frame id from hash at load time.  closes #295