add file chooser for byte[] data type.
Merge branch 'master' of https://github.com/Apelon-VA/ISAAC.git
add other styles of executor run calls, add access to a timed executor
service.
Another convenience property class
cleanup of 'hung' drags after a fixed period of time.
shutdown executor thread pools during shutdown.
clean up some APIs, add support to the refex builder for manditory
columns, add other missing bigs of GUI to the refex builder.  Clean up
some API issues on the ConceptNode component.
Merge branch 'master' of https://github.com/Apelon-VA/ISAAC.git
add support for setting polymorphic fields.
Get the top level menus interface out of the IsaacViewI interface - move
it down to a different interface which extends IsaacViewI.

This way, things that don't intend to provide menus (and more
importantly, are specified as @PerLookup, rather than @Singleton) won't
be initialized during the App startup when it is enumerating classes
looking for menus.
cleaning up some warnings
delay init of enhanced search view because it was preventing the app GUI
from coming up until after the DB finished init.
Merge branch 'master' of https://github.com/Apelon-VA/ISAAC.git