Adds backend check for deleting experiment
Merge branch 'develop' into feature/backend_updates
Model changes: InterventionPointDeployments -> InterventionPointInteraction, unique_togethers added
refactor: 'deployments' -> 'interactions', 'deployment' -> 'interaction'
Merge branch 'feature/namespacing_change' into feature/backend_updates

Conflicts:
	ab_tool/templates/ab_tool/control_panel.html
	ab_tool/templates/ab_tool/edit_experiment.html
	ab_tool/templates/ab_tool/experimentsDashboard.html
	ab_tool/tests/test_main_pages.py
	ab_tool/urls.py
moves log_intervention_point_interaction lower
Merge pull request #80 from penzance/feature/backend_updates

Renames model and adds backend check