equals requires hashCode. No usage of equals could be found so removed from Pair.
UiFileInfo defined compareTo without equals and hashCode.  Since this is needed, switched over to Comparator
null checks ignored in finally block with nullable types.  added transient flag to master info
added transient flag to all servlet fields
Merge pull request #489 from dcapwell/findbugscleanup

Findbugscleanup