Javassist is out of date in Tattletale

When run against the large batch of applications from rhn-gps-mzottner, the analysis sometimes throw exceptions like this:

java.io.IOException: bad magic number: 43414645
java.io.IOException: bad magic number: 54686973
java.io.IOException: invalid constant type: 15
java.io.IOException: invalid constant type: 18
java.io.IOException: invalid constant type: 60

These appear to be because of issues with the outdated javassist jar in both rhamt and the tattletale add-on.

These should be updated to the latest version to have full support for Java 8.