Fixed crazy feature
Fixed crazy feature

Previously the backend has started a new gographer server for every
connecting client. This allows clients to have a separate session where
they could add/remove nodes, but eventually the number of gographer
servers and open sockets would make my mac grind to a halt. The current
implementation uses a single gographer server for each pathway.
Hopefully this won’t break stuff.

fjukstad/kvik,fjukstad/kvik,fjukstad/kvik,fjukstad/kvik-frontend