-Added tags in HeadStartHTML.html to support mobile platforms better.
-Added link to index_dev.html page in index.html page.
-Fixed " Problem with activity xml file paths when running using file
protocol #29 "
	Added activityContentPathFromTemplates url param to fix the path issues
-Updated index_dev.html page with activityContentPathFromTemplates url
params
-Fixed toggleFullScreen issue
-Removed templates directory from HeadStartHTML repo (only a couple
activities were there)