[MRM-1238] - NPE when updating consumers of known content without setting any of the checkboxes (enabled) - added null checks - added unit tests Submitted by: Gwen Harold Autencio
archiva/trunk/archiva-modules/archiva-web/archiva-webapp/src/main/java/org/apache/maven/archiva/web/action/admin/scanning/RepositoryScanningAction.java
archiva/trunk/archiva-modules/archiva-web/archiva-webapp/src/test/java/org/apache/maven/archiva/web/action/admin/scanning/