remove developer sign in link
move samples/_sampling_button view to samplings/_create
add header to uploads page
redirect to uploads path after creating a node
Add to crate button
_button partial is responsible for not showing if node is already in a users crate
move Node#in_user_crate? to User#has_in_crate?
sign_out button
sampling button in node show
crate object encapsulates nodes join cratings
Node -> Sound