More community participation in JavaFX

[Kevin Rushforth]

Looks like we have some good discussion so far.

I see a few themes emerging (build/test, sandbox on GitHub, ease of 
filing bugs, etc) along with some discussion on graphics performance 
(which is fine as long as the discussion doesn't veer too far into 
discussing specific graphics features).

I'll let more folks chime in before I reply to anything specifically 
(and I'll be offline over the weekend anyway).

Thanks!

-- Kevin