ignition-cmake2 2.0.0~pre2 (#546)
ignition-cmake2 2.0.0~pre2 (#546)

* ignition-cmake2: update 2.0.0~pre2

* ignition-cmake2: update 2.0.0~pre2 bottle.

scpeters/homebrew-simulation,j-rivero/homebrew-simulation,osrf/homebrew-simulation