Cleanup commit for merge
Merge branch 'master' of https://github.com/lbondaryk/PlayerProto

Conflicts:
	js/widget-slider.js
prototype: multiple images added via library method, to performance test against an upcoming iframe method
initialization with iframes wip
Merge remote-tracking branch 'upstream/master' into seann
iframes through config POC
very preliminary ideas of a cement class and a support class for iframes
Merge pull request #80 from seannives/seann

Seann
Merge pull request #81 from ysahnpark/youngsuk

Youngsuk
Merge pull request #82 from mlippert/utilities

very preliminary ideas of a cement class and a support class for iframes
Explicit time ticks

* fix for extent in the presence of explicit time ticks
* convert time ticks to dates
* put in logic to apply the explicit values to the d3.scale.time.ticks() function, but it doesn't work properly right now
fixed the connection between the sliders and their associated imageviewers
Merge pull request #83 from mlippert/iframe-chemtest-fix

fixed the connection between the sliders and their associated imageviewers
OceanProperties page and images
Fixed up AnswerMan

* Got rid of extra config
* fixed location of return of submitted values in formatted response
Trial new CSS
Alphanumeric labels

* ported .getChoiceNumberToDisplayFn_ to the labelgroup object fro the radiogroup.
* labels uses type: key and radiobutton uses numberFormat. Probably need to rationalize.  Type is used across many widgets.
Update Ocean Properties

* adding extra images and labels to Oceans example
* can append labels to carousel by accessing the .image property
* need to make three separate labels objects to highlight them all
Cleanup Submit Manager

* added submit manager to multiChoiceTests and hooked up some questions
* removed bogus config argument to submitManager function, and passed arguments
* changed button label in disabled state for multiplechoicequestion.js
SelectGroup as MC question

* added keys and lite method to selectGroup so they could function as UI element
* added selectItem() method for returning answerKeys to multiplechoicequestion widget
* added question property in config for setting whether select is to be used as a question