remove assets pipeline and js and css files
add oj
make all spec requests accept json. breaks controller tests
SoundPresenter, and return json from sounds controller
remove pages controller and routes, make sounds#new the root url for now
generalize presenters, add user presenter, fix users controller
DRY presenters and controller specs
collaboration presenter and controller responds with json
crating presenter and json endpoint
expect do -> expect {
remove all views, remove redirects from sessions controller