sbt-microsites connects to window server on OS X

[tpolecat]

When I do makeMicrosite the JVM connects to the window server, which means a generic Java icon called "Boot" appears on the task bar, and if I'm in a fullscreen window when I do this it slides me over to another desktop. Not a big deal, but you can fix it by adding

System.setProperty("java.awt.headless", "true")

before you do whatever it is that's initializing AWT. You might want it to be a setting in case someone actually wants to be able to pop up windows when their doc is compiling.

[yannbolliger]

This is still present.