hg: openjfx/8/graphics/rt: RT-30503: Gradle: need update-cache task to support closed builds

[hang.vo at oracle.com]

Changeset: 983af42d54d0
Author:    Richard Bair <richard.bair at oracle.com>
Date:      2013-06-20 09:21 -0700
URL:       http://hg.openjdk.java.net/openjfx/8/graphics/rt/rev/983af42d54d0

RT-30503: Gradle: need update-cache task to support closed builds
Also some minor whitespace typo fixes.

! build.gradle