HUGE changes.
add mongoid_auto_increment to gemfile; update Act model to auto increment seq_id on create;
Modify Acts#show to find both by seq_id and id
modify Mongoid config (config/mongoid.yml): set raise_not_found_error to false
add currentPath tracking to ApplicationController
modify ds.store and DS.transforms to use j2hn and hn.get('json'); new transform called 'humon'
switch from embedding DetailsView to HumonNodeView for act.hbs
in acts.hbs, iterate over content with itemController=detail, and in each iteration instantiate ActView with content = act
change acts route to call Act.find()
convert DetailController from EmberObject to ObjectController; explicitly include activeHumonNodeView property (otherwise cannot have bindings)