Prefer imports whose package name matches a project namespace

A user who creates a logging deftype at
org.mycompany.loggingservices.Logger probably doesn't want to import
java.util.logging.Logger.

The slam.hound.regrow_test.UUID IRecord was changed to conflict with
java.util.TreeSet as this change breaks other tests that did not
anticipate this preference.
Release 1.5.4
Set project version to 1.5.5-SNAPSHOT