(example code) fix logout button in example primary.  we've required that folks call navigator.id.logout(), invoking the logout function with navigator.id as the this pointer.

includes updates to the example primary and tests.

* include.js and dialog.js both throw a "requiredEmail has been deprecated" exception.
* remove tests for dialog.js that check requiredEmail.

issue #1760

Change browserid.org urls to persona.org, introduce static.login.persona.org for all static resources.

* Highlight transitional code in storage.js
* Clean up input variable names to setReturnTo/getReturnTo
* Fix error message if RP does not specify returnTo
* Add a sample postVerificationReturn.html page to the sample RP
* Remove the automatic setting of returnTo to origin_url in dialog.js
* Instead of returning origin for user.tokenInfo, return returnTo

Also made the site name/logo into a checkbox.

Update to rename name->siteName, logoURL->siteLogo.  Update sample RP.  Update styles to look better.

* Add a new controller and template - rp_info
* Adjust the screen size hacks to take into account the dynamic height "favicon"
* Add an action to start the rp_info service.

* properly check and escape logoURL and name in dialog.js
* Add some tests ensuring logoURL and name are escaped.
* Print information in rp_info controller.

issue #1098

close issue #1488

* In the example RP, instead of accessing localStorage directly, access it through a variable that is guaranteed to exist.
* In page_helpers.js, do all localStorage access through new functions in storage.js
* In storage.js, if localStorage is inaccessible, create a standin.

issue #1414

group public API into a single object.  updated doumentation.  wordsmithed error output.  move .request() under navigator.id.experimental too.

ensure onready is called at the correct moment (after login/logout observers have been invoked, subsequent to .watch() being called)

when setLoggedInUser is used, surpress events when the site's notion of a logged in user is the same as that of browserid

purge all references to old persistent/remember me functionality - create local storage that keeps track of where you're logged in - wire up login/logout events to fire as appropriate on page load

Fixing up a bunch of cancel primary verification flows. This is when a user is verifying with a primary and they hit ccancel and are redirected back to BrowserID.

Flows:

* Required email cancel.
* Cancel add user to current account.
* Cancel create new user.

Others Items added.

* Add a "cancel" button to the sample RP.
* Defer how state should be handled for primary user verification from dialog to state.

issue #983
issue #1036

Improve in-source RP for testing.  Now you can fully specify the navigator.id.get() call without writing code - this is not an example for browserid implementors, but rather a local testing tool for browserid devs.  for testing of issue #776

implement a more generic mechanism to enable local testing and development of primary support - allow SHIMMED_PRIMARIES to be provided which stuffs a auth url, provisioning url, and public key in our cache