Changes filename of data downloads; adds track and url to Interactions model
interface text change: 'Students' -> 'Track Assignments'
adds editInterventionPointFromCanvas.html
Merge branch 'develop' into feature/miscellaneous
removes editInterventionPointFromCanvas.html to be included in separate pull request
adds new html template
makes the html page functional
adds edit mode for started experiment with fields related to tracks disabled
submission on this form only allows editing names and notes
updates tests
modules_page_submit_edit_intervention_point page,url added
reverts modules_page_submit_edit_intervention_point manually
changes data downloads to be streaming
Merge branch 'develop' into feature/started_experiment_editing

Conflicts:
	ab_tool/templates/ab_tool/editExperiment.html
Merge branch 'develop' into feature/editing_interventions_from_canvas
Merge branch 'develop' into feature/streaming_data
Renames Mockfile class to Echo
Merge pull request #94 from penzance/feature/streaming_data

Changes data downloads to be streaming
Merge branch 'feature/miscellaneous' into develop

Conflicts:
	ab_tool/analytics.py
	ab_tool/templates/ab_tool/control_panel.html
fixes a label-for attribute
Merge branch 'develop' into feature/editing_interventions_from_canvas