put sliders in divs so they don't wrap oddly
Objectified chemistry page

* added required images (quite a few) in the img/butene directory
* added object tags
* removed straight div tags
* moved *some* handlers into html subpages, others weren't obvious
Merge remote-tracking branch 'upstream/master' into youngsuk

merging from upstream
Removed old in-page image scripts
slider: update eventDetails description
carousel: include index in selected event details
for the chem test of using objects/iframes, change the objects to iframes

Because the inkling folks had said there are some issues currently w/ using objects, our performance and functionality tests of this object/iframe design should use iframes.
iframe chem test - added iframe event handlers for set of brix #1
iframe chem test - added iframe event handlers for set of brix #2

This required creating a special handler to modify the brix in the iframe in response to an event fired from a different iframe.
iframe chem test - added iframe event handlers for set of brix #3
iframe chem test - minor mods to unconnected image brix #4

I made minor changes to these unconnected brix following the previous connected set (#3) before we get to another connected set of brix, which will be dealt w/ in a subsequent commit.
iframe chem test - added iframe event handlers for set of brix #5

This required creating a special handler to modify the brix in the iframe in response to an event fired from a different iframe.
iframe chem test - added iframe event handlers for set of brix #6

This required creating a special handler to modify the brix in the iframe in response to an event fired from a different iframe.

fixed missed conversion of some objects to iframes in the main page.
iframe chem test - added iframe event handlers for set of brix #7

This required creating a special handler to modify the brix in the iframe in response to an event fired from a different iframe.
iframe chem test - added iframe event handlers for set of brix #8
iframe chem test - added iframe event handlers for set of brix #9

This required creating a special handler to modify the brix in the iframe in response to an event fired from a different iframe.
iframe chem test - fix forward function references
Merge pull request #73 from mlippert/iframe-chem-test

Iframe chem test
Merge remote-tracking branch 'upstream/master' into youngsuk

iframes
Implement simple MessageBroker and extend the EventManager to work with MB. Test with Kantorowski page