PIVOT-924: Change scope of ApplicationContext.handleUncaughtException to public
so it can be called from outside places (re: BXMLSerializer), meaning it is the
ONE place where all uncaught exceptions are finally processed.


git-svn-id: https://svn.apache.org/repos/asf/pivot/trunk@1537222 13f79535-47bb-0310-9956-ffa450edef68