NXP-15043 connection helper should unwrap transql connection handles
NXP-15046: get all Log4J appenders
NXP-15043 should return connection in case of not pooled
NXP-15077: Avoid NullPointerException on runtime Framework static classes
NXP-15077: cleanup framework static classes retrieving boolean props + add tests
NXP-14568: drop Java 6 compliance

Useless since NXP-14534 (Check Java version in Shell scripts)
NXP-14568: cleanup
NXP-14568: set mp visibility

Remove deprecated use of org.nuxeo.connect.update.Package.getState()
NXP-14568: set mp visibility

Fix xmap deserialization