hg: openjfx/2.1/master/rt: Attempt to provide default JFXRT_HOME if the environment variable isn't set.

[hang.vo at oracle.com]

Changeset: 049118ba62b5
Author:    jgiles
Date:      2012-01-18 10:18 +1300
URL:       http://hg.openjdk.java.net/openjfx/2.1/master/rt/rev/049118ba62b5

Attempt to provide default JFXRT_HOME if the environment variable isn't set.

! build-defs.xml