Fix to make System.out/System.err output only when debugging

Fix to make System.out/System.err output only when debugging

incl. also some Eclipse Auto-Save automated clean-up changes

Added checkstyle builder to some projects.
Changed some printlns to log method calls, including some commented-out
printlns (from earlier commits in this review).
Changed some HashSet variable types to Set.
Added additional log method to Activator.

Change-Id: I3dc5989136914c11a1af154789a885c6ff19ec6d
Signed-off-by: Michael Vorburger <vorburger@redhat.com>
Signed-off-by: David M. Karr <davidmichaelkarr@gmail.com>