Included performance chart in students account
Merge branch 'master' of https://github.com/redrosevishnu/pscexams

Conflicts:
	pscexams/admin/admin.pyc
	pscexams/settings.pyc
	pscexams/static/admin.pyc
	pscexams/student/admin.pyc
	pscexams/student/models.pyc
	pscexams/tutor/admin.pyc
	pscexams/tutor/views.pyc
	pscexams/urls.pyc
	pscexams/views.pyc