Spec for adding interactives via form
Scaffold and model definition for Sequences

[#51592849] Just the basic Rails scaffold, but the model definition exists and the join model associating sequences and activities is also set up.

https://www.pivotaltracker.com/story/show/51592849
Controller actions and access control for sequences

[#51592849]

https://www.pivotaltracker.com/story/show/51592849
Sequences have owners

https://www.pivotaltracker.com/story/show/51592849
Adds thumbnail_url to activities [#51592849]

https://www.pivotaltracker.com/story/show/51592849
Make view specs work for sequences
HAMLizing ERb views
Adding login/logout partial to activities/edit
Whitespace cleanup
HTML for Sequence views [#51592849]

This gets all the content on the page. In the case of the index page, where the style is borrowed from the Activities listing, it's pretty close to "finished". The new and edit forms aren't bad but don't account for adding and removing activities (yet). The actual show page puts all the content on but is close to unstyled.

https://www.pivotaltracker.com/story/show/51592849
Left-justifies numbers and prompts in summary

[#49854337]

https://www.pivotaltracker.com/story/show/49854337