adds in aria attributes and semantic status content for vsepr input problems
adds in aria attributes and semantic status content for vsepr input problems

caesar2164/edx-platform,jbassen/edx-platform,Stanford-Online/edx-platform,Stanford-Online/edx-platform,jbassen/edx-platform,Stanford-Online/edx-platform,caesar2164/edx-platform,jbassen/edx-platform,jbassen/edx-platform,caesar2164/edx-platform,jbassen/edx-platform,caesar2164/edx-platform,Stanford-Online/edx-platform