hg: openjfx/8u-dev/rt: 8202036: Update OpenJFX license files to match OpenJDK

[kevin.rushforth at oracle.com]

Changeset: 4d46b5956d59
Author:    kcr
Date:      2018-04-20 11:30 -0700
URL:       http://hg.openjdk.java.net/openjfx/8u-dev/rt/rev/4d46b5956d59

8202036: Update OpenJFX license files to match OpenJDK
Reviewed-by: prr

+ ASSEMBLY_EXCEPTION
! LICENSE