Add in modification notification and remove unused import
Initialise Keystore and Truststore System properties when the masterpassword has been read. This fixes a bug whereby only the initialisation of the
JMX connectors triggers the these system properties can be set and the JMX connectors can be disabled.

Probably needs a greater refactoring than this
Merge pull request #121 from smillidge/master

Fix #120 GLASSFISH-20994