cnf: javadoc ant target also needs the bootclasspath

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
cnf: allow findbugs to be skipped

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>
build: skip junit and findbugs

Signed-off-by: Ferry Huberts <ferry.huberts@pelagic.nl>