fixes #2132

Give the Persona window the name __persona_dialog when opening. Useful for Selenium tests which need an easy mechanism to get a handle to the window being tested.

* Vertically center the layout again.
* Apply the -webkit-text-size-adjust to the body.
* Remove the background-image gradients on the body.
* Reduce the vertical height of the "Use another address" button.

fixes #2116

improve i18n of main site - strings for translators should not include site implementation details (links, ids, etc) - this prevents accidental breakage and allows us to change our ids and links without requiring retranslation.  closes #2093

When a secondary email is verified, make sure its verified bit is set to true.  Lots of cleanup for readability.

When the verification poll completes, if the user is not currently authenticated to the "password" level, use the staged password to authenticate the user.

If user never entered a password, kick them over to the enter your password screen.

Rather than going straight to the quick setup, we should link to somewhere that
gives a little more context.

* to page_helpers.emailSent, add a new input paramter - pollFuncName.  The poll functions are unique for each type of email sent.

* Generalize and cleanup unit tests

* This is still not pretty, but it is a safe for hotfix into staging. This makes the unsupported dialog and cookies disabled screens look equivalent to the current prod.

cherry picked from the stage hotfix - 977706bc288660a5b40c5ea58001fc9bba4fda90

* Still focus the first address if no address is selected.
* Show a tooltip if the user has not selected an email address.
* Adding test helper functions to test for element focus and check.

issue #2061

<%- is an alias for <%=.

Update one unit test so all frontend tests pass.

adorn confirmations on main site (like 'd00d, sure you wanna cancel') with gettext() for proper extraction and substition

'or' was not gettext() decorated in index.ejs - allow a translator more control over the whole phrase