Removed unnecessary method for reading files to strings, using IOUtils instead.  Removed unused copyFile method too
Overriding RIRelationshipResolver in fedora to prevent extra query to get parents (with the wrong relationship) from running on each request
Removed SessionClosingInvocationHandler
Handling errors when requests for foxml get briefly interrupted (such as an apache restart) when getting document indexing packages.  Catching no content models case when checking if an object has valid content models for processing.  IndexingException no longer a RuntimeException and made IndexingExceptions be explicitly thrown as part of a methods declaration for clarity