* Fix wait, delay, and error screen colors and positions.

* Fix buttons not showing arrow on Android
* Fix authentication screen with TOS/PP now using scrolling when password field is shown.
* Fix "Add a new email" and "this is not me" being stacked in iOS.

check 500 error pages into repo, from here we can copy them out to different deployment environments as needed

Removing unnecessary resources, renaming persona_logo_transparent.png to persona-logo-transparent.png

A lot of cleanup to make the site smoother, IE8 fixes, removing dead code, make the arrow transition smoother.

* On the main page, update card with new design.
* Simplify a lot of styles and layout.
* Clean up the "about page"
* Using css transitions for the arrow slide.
* Change all BrowserID text to Persona.
* Fix a problem on the main site where the footer would was not at the bottom in Webkit and Opera browsers.
* Fix the background color or IE8 in the signUpForm and congrats messages.
* When signing in to the main site, use a tooltip instead of error message on incorrect password.

* A lot of bulk changes to both the main site and dialog.  Updated color schemes, background colors, etc.

This moves the assignment of params.email from the primary-controlled
URL hash (#CREATE_EMAIL= and #ADD_EMAIL=) into the verification block,
and adds bid.verifyEmail() to check them. Closes bug 758449.

* In set_password.ejs, only show the "cancel" button if not setting the initial password for a required email.
* Update required_email.js to handle the set-password in dialog flow.
* Clean up required_email.js so that it is easier to follow.
* Rename the "add_email_submit_with_secondary" message to "stage_email" - much clearer.
* Show a message whenever resetting the account password.

issue #1638
issue #1580

Add additional tests to check whether requiredEmail, tosURL and privacyURL parameters are passed to "start" when expected.

Fix the user being asked 4 times for a password when adding a secondary email to a primary account and verifying email ownership in a new browser.

* When "email_staged" is triggered, trigger it with the password.
* Rename helpers.addSecondaryEmailWithPassword to helpers.addSecondaryEmail
* Add unit tests for helpers.addSecondaryEmail
* Yak shave the unit tests to clean them up so that they are easier to follow.

issue #1555

issue #1635

* Add the startExternalDependencies option when initializing the dialog controller, if set to false, no external dependencies are loaded.  Used for testing.
* Add a new test to check for script containing emails.
* Add unit tests for tosURL and privacyURL.
* Add a testHelpers.testErrorNotVisible
* Removed the actions.js->doError and its tests, it is no longer used.

Since validation is done earlier, invalid addresses are reported as with
renderError() instead of startAction("doError"). So the tests which
watch for doError are now failing (the frontend tests named
"resources/state: start with invalid requiredEmail - print error screen"
and "resources/state: start with empty requiredEmail - prints error
screen". I don't know how to make them watch for renderError() instead.

One upside of this patch is that @stomlinson told me the three-argument
to startAction("doError"..) in state.js was a bug, as it only accepts
two real arguments. Removing it is even easier than fixing it.

Instead of showing an error message, show a tooltip when the user types a bad password in the add_email_address and verify_email_address screens.

issue #1557

* For the buttons, use id's instead of classes.
* Focus the "yes" button when the screen is shown.

issue #1582

Specifically to get _.escape()

* Removed the .interactionData namespace from storage.js, created our first model - shared/models/interaction_data.js
* Simplified how data is stored into interaction_data, created current and staged sub-namespaces
* Added stageCurrent and publishStaged functions.
* in shared/modules/interaction_data.js, simplified calls to model.
* Tried to make the xhr mock make more sense and provide facilities usable for peeking at last XHR request data.

issue #1597

Make users who have not yet set their password by time they reach the landing page set their password.

issue #1592

when the server returns a 413 error for posting of interaction data, clear the data from local storage - issue #1567

issue #1581

insert a setTimeout between two main phases of assertion generation to prevent unresponsive script warnings in IE8 - issue #1575

* css/style.css - where relevant and opacity's are used, use filters for IE6 and IE7.
* shared/storage.js - when clearing localStorage if the user is not authenticated, call removeItem for the emails.  The call to JSON.stringify was blowing up.

issue #1529

Partial fix IE6 and IE7 blowing up on main site.  These browsers do not have Array.prototype.indexOf

issue #1552

Replace the removed `delete storage.interactionData` with localStorage.removeItem("interactionData") to avoid IE8 exceptions.