SMACK-639
- Lines containing tab(s) after space - Usage of printStackTrace - Usage of println - Add SupressionCommentFilter module SuppressionCommentFilter can be enabled with // CHECKSTYLE:OFF and disabled with // CHECKSTYLE:ON
Fixes SMACK-634
Move Roster and Chat(Manager) code into their own packages within the new smack-im subproject. Apply Manager pattern to Roster. Fixes SMACK-637.