Now only display the shape that the user is playing on the play
page (instead of the various sliders)

Also fixed a off-by one bug in the conductor shape assignments

The presencesketch now sends OSC data via WebSockets to
ws://localhost:8080 where a bridge can translate the data to UDP

see https://github.com/adzialocha/osc-js/wiki/PureData-&-MaxMSP for the
example this was built on

This reverts commit ecf1e6ca.

going to revert in a second

- Break out player and conductor view
- separate js libraries (doesn't quite work yet)
- different layouts for player / conductor

In order to update the boids, send back orientation/acceleration data to
the new VisualsChannel.

The "/conductor" page shows the current connected players as boids.
Joining / Leaving is handled correctly throught eh Phoenix Presence
frameworks