Changed Checkstyle configuration to allow absent @author tags.
Changed Checkstyle configuration to allow absent @author tags.

Signed-off-by: Christoph Daniel Schulze <990d4710b15458e3edaa8601cdf5b44648b4fc61@informatik.uni-kiel.de>
eNBeWe/elk,eNBeWe/elk,eNBeWe/elk