Added explicit 64 bits compiled binary.
Added 64 bits targets.
Moved JFX utils to ptk.ui module.
Must add jfxrt.jar to classpath manually.
Merged gui.utils with gui.vbrowser.

Most gui.utils classes are vbrowser classes anyway.
Generic gui.utils will be moved out of vbrowser package.
Moved gui.util classs into vbrowser.
Moved VRSPresentation class to vlet vrs.
bugfix: when no tab is present: auto create new tab.
Added Virtual Root Proxy Node for hidden top level Root Nodes in
ResourceTree.
Added small Add and Delete icons to top Tab Panel Component.
Virtual Proxy (root) node must delegate canOpen and openLocation to
child ProxyNodes + ProxyFactories.
comments
Out of bound exception: when closing the last  tab there is no tab to
the left.
Added default iconAttributeName to UIPresentation and default icon
column to ResourceTable.
Removed gui.utils from build.
Merged UIPresentation (from VRS) with Presentation.
Added getBasename() method which optionally removes extension from
basename.
Bugfix: must not autocreate Presentation object when autocreate==false;
Merged UIPresentation and Presentation.
Updated FSUtils to use nio Files interface.