(loadgen) include-only activity properly returns errors accoring to new error conventions (undefined means success)

* Replace all the input[type=submit] with buttons so that we can set the line-height.
* Use common CSS between all buttons.

close #658

* When setting the text of the email address, use dom.setInner.
* Update the test to use .val() for the check.

close #657

* Remove the common css from style.css and popup.css, place here.
* Update includes list, build script.
* Fixes inconsistency in button capitalization text between dialog and main site.

close #655
close #578

close #654

close #533

close #652

Removing openajax.js, adding hub.js

issue #650

close #650

more issue #598 - add test and fix for other places where exceptions leak out of JWCrypto and cause 500 errors rather than 200 failure responses.

create a test which reveals that the verifier considers assertions that have expired to still be valid (with expiry upto two minutes in the past)

tests to reproduce and fixes for wildy invalid assertions posted to the verifier.  closes #598 and closes #605

certs issued by anyone other than the verifier should fail until primary support is implemented.  closes #645

add a (failing) verifier test of an assertion signed by a cert issued by someone other than the trusted domain.

better input validation on audience.  accept even more forms of input (domain:port) and do the best we can to validate.  closes #642

the verifier is more helpful if you leave off content-type headers, also did you know we support application/json?  closes #643

add tests to verify that we allow verification request parameters to ride in the path, or in the content body.  wierd, but it's our contract, let's test it!  Also, add test of misset content-type

implement basic verifier unit tests.  These will prevent regression on issue #467, and can grow to address issue #598

(loadgen) when generating assertions, calculate current server time in the same manner that the webclient does - namely add a delta from session creation time to now to server time - issue #504

(loadgen) add -u option that allows one to specify a numeric range which will make load testing with a large database possible - issue #504

on a hard connection error during http forwarding, don't end the client reqeust, instead let the client formulate the error code and message

(loadgen) rename prepare.js to common.js as it holds common processes used by multiple different activities - issue #504