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.
update the info variable name for clarity
Merge pull request #3234 from mozilla/issue_3060_async_bidbundle

Asynchronously load bidbundle for performance wins!