Asynchronously load bidbundle for performance wins!

* Add a CryptoLoader module that loads jwcrypto on demand.
* Update the build script to replace '/production/bidbundle.js' references in the JS with the cachified version.
* Force bidbundle.js to be compressed before everything else.
Adding forceAuthentication parameter to request
Add QUnit tests for forceAuthentication in dialog.js->doCheckAuth
Update helpers.log to handle multiple arguments. Objects will be JSON.stringified.
don't stringify functions; guard against recursive objects
update the info variable name for clarity
rename rp parameter to _experimental_forceAuthentication
Add two margins.

* Add a top margin to "Add another address" and "this is not me" for non-english speakers when the buttons spread across two lines.
* Add a top margin to all email, text, and password fields.

fixes #3250
Move developers link to the footer

fixes #3197
Add an "Account" link to the main site nav

issue #3196
Prefetch dialog components from the communication_iframe

When the browser is idle, it will start fetching and caching the
dialog's Javascript, CSS and images. This works on IE9 and Firefox
(it's currently disabled in Chromium).

The trick is to make sure that the communication iframe is open
while the user is busy reading the RP's site. When using the
Observer API, this happens automatically at the end of the
navigator.id.watch() call.
Make use of new connect-cachify helper function
Only show the verification page if needed. If not needed, redirect immediately.

fixes #2871
Merge pull request #3237 from mozilla/b2g_dev_helpers_log

B2G->dev merge - Update helpers.log to handle multiple arguments. Objects will be JSON.stringified.

Thanks for the updates @jedp! r+
Merge pull request #3262 from mozilla/issue_2871_white_verification_page

Only show the verification page if needed. If not needed, redirect immediately.
We don't need the assign_issues script anymore.
Merge pull request #3265 from callahad/remove_roundrobin_script

We don't need the assign_issues script anymore.

r+!
Merge pull request #3256 from mozilla/issue_3250_non_english_buttons

Add two margins.
remove node-inspector as a dep - people can manually install this if they want it
Merge pull request #3268 from mozilla/remove-node-inspector

remove node-inspector as a dep - people can manually install this if they want it