FileManagement package

Lots of work this past week on the FileManagement package.  Not yet finished, but getting close.  Note that JavaDoc comments are in need of tweaking and should not be trusted.
java 7 allows you to handle multiple exceptions the same way with one catch clause. See http://docs.oracle.com/javase/7/docs/technotes/guides/language/catch-multiple.html

however, in this case, it looks like you don't need to catch SecurityException all at. Because you catch and then throw a new one immediately.