Make dependencies explicit

This introduces "make deps" to install dependencies and removed
"./server" in favor of "make serve". Also, no need for super-user
privileges to install dependencies any longer.
add a do-nothing button for editing a card off the feed view
prepare to use react-nested-router; update README with new setup instructions
Start using react-nested-router
Merge branch 'chrisklaiber-master'

Conflicts:
	README.md