Fixed filter by experiment group dropdown
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	modified:   patients/static/javascript/encouragement.js
	modified:   patients/templates/index.html
	modified:   patients/templates/visit_form.html
	modified:   patients/views.py
Add Client Call.  Seperated out backend database storage. MAJOR CHANGE
	new file:   backend/__init__.py
	new file:   backend/admin.py
	new file:   backend/models.py
	modified:   kenya/settings.py
	modified:   kenya/urls.py
	modified:   patients/admin.py
	modified:   patients/models.py
	modified:   patients/static/css/encouragement.css
	modified:   patients/static/javascript/encouragement.js
	modified:   patients/tasks.py
	modified:   patients/templates/display_client_fragment.html
	modified:   patients/templates/message_frag.html
	modified:   patients/templates/visit_form.html
	modified:   patients/views.py
	modified:   transport_email/__init__.py