fixes tests to handle new schema for experiment creation and editing
adds test for add track
adds some tests
Merge branch 'feature/new_interface_integration_part6' into feature/new_interface_integration_part7
Merge pull request #84 from penzance/feature/new_interface_integration_part7

Feature/new interface integration part7
test fixes given code modifications
Merge branch 'feature/new_interface_integration_part6' into develop