Create LabelSet model the right way.

[#46033489]
setup default permissions for LabelSets
Whitespace in activity.rb
Mark LabelSets as children of the activity
Try to get a "new for activity" link for LabelSets
Use Faker.
Catching up a little unit-testing tech debt
Creates and initially tests the "Label" object in the data model.

[#46042907] There is still a bit of testing to verify that label_sets hash properly when they own labels, and then the relevant views.
Testing for label sets with labels

[#46042907]
Labels controller, adding them to LabelSet page

[#46042907]
WIP on adding Labels to LabelSets

[#46042907]
Almost able to manage Labels within LabelSet form.
Merge branch 'master' into wip-label-sets

Conflicts:
	app/controllers/label_sets_controller.rb
	app/models/label_set.rb
	db/schema.rb
	spec/controllers/label_sets_controller_spec.rb
	spec/helpers/label_sets_helper_spec.rb
	spec/models/label_set_spec.rb
Rename 'Label' to 'GraphLabel'

Speculative fix - is there a name collision in Hobo with the 'Label' model which is causing my headaches?
Bug fixes to make label sets work with labels.
Speculative fix for name disconnect between json and GraphLabel model
Associates existing LabelSets and PredefinedGraphPanes.

[#46033683]
Refactoring PredefinedGraphPane model spec
Adding label_sets to to_hash (with rescue if they're not there)

[#46033683]
Animation model as created by Hobo generator

[#47371327]