Stub for lighting up entities
Break out Geppetto client side setup functions into separate module

-GEPPETTO setup functions moved to separate Init module, which has an
"initialize" function that returns state variables stored in VARS
object.
-Init module also handles attachment of event handlers.
-GEPPETTO#getObjectFromJSONEntity cleaned up.
-Underscore added and used in a few places.
-Fixed a few implicit global variables (missing "var" declarations)
-Removed functions GEPPETTO#mergeEntities, GEPPETTO#divideEntities,
because it appears they are not being used.

-Removes GEPPETTO#setMouseClickListenter,
GEPPETTO#removeMouseClickListenter because they aren't being used (Let
me know if you want them left in.)
Remove /src/main/webapps from <directoryRoots>
Set material color brightness as a function of intensity in GEPPETTO#lightUpEntity

Barring a more advanced solution, setting the material color brightness
as a function of intensity seems to work ok. Requires storing the
original color as a property on the material
Merge branch 'geppetto.init' of
git://github.com/mlolson/org.geppetto.frontend into
mlolson-geppetto.init

Conflicts:
	pom.xml
	src/main/webapp/index.html
	src/main/webapp/js/websocket-handlers/GEPPETTO.SimulationHandler.js