updated experiment.js

removed quirks mode js function (they werent very good)

added jquery.cookie library, the current external js load function is
quite slow, im looking to make this js script into a require.js module,
once its in a fully working order

updated cleanExperimentEnviroment with new jquery cookie functions

updated pageCounter() timeSpent to global $timeSpent standard

setCookieData(); was overiding cookie values on every page moves
meaning it wasnt added page clicks across the experiment, this updated
to additional exiting cookies to on page vars. you have to parseInt()
cookie intergers to addition them

updated experimentEnviroment() to use jquery cookies