hg: openjfx/11-dev/rt: 8214716: Record the versions of tools used to build FX in the repo

[johan at lodgon.com]

Changeset: fa879acde419
Author:    arajkumar
Date:      2019-04-03 19:25 +0530
URL:       https://hg.openjdk.java.net/openjfx/11-dev/rt/rev/fa879acde419

8214716: Record the versions of tools used to build FX in the repo
Reviewed-by: jvos, kcr

! build.gradle
! build.properties