hg: openjfx/8u-dev/rt: 8151865: JavaFX Gradle build script fails with Gradle 2.12

[kevin.rushforth at oracle.com]

Changeset: f415d5d7008b
Author:    kcr
Date:      2016-03-24 10:17 -0700
URL:       http://hg.openjdk.java.net/openjfx/8u-dev/rt/rev/f415d5d7008b

8151865: JavaFX Gradle build script fails with Gradle 2.12
Reviewed-by: ddhill

! build.gradle