PIVOT-912: Fix build errors cause by duplicate JSObject classes in both
jfxrt.jar and plugin.jar.  In our case we don't need Java FX, so we can
safely eliminate that .jar file from our compile classpath.

This is a merge of revision 1510821 from trunk to branches/2.0.x.


git-svn-id: https://svn.apache.org/repos/asf/pivot/branches/2.0.x@1510822 13f79535-47bb-0310-9956-ffa450edef68