Increment the handled count in MultiColumnList on handling a semantic event.
Increment the handled count in MultiColumnList on handling a semantic event.

cbeck88/cegui-mirror,arkana-fts/cegui,arkana-fts/cegui,cbeck88/cegui-mirror,arkana-fts/cegui,arkana-fts/cegui,cbeck88/cegui-mirror,arkana-fts/cegui,RealityFactory/CEGUI,RealityFactory/CEGUI,RealityFactory/CEGUI,RealityFactory/CEGUI,RealityFactory/CEGUI,cbeck88/cegui-mirror,cbeck88/cegui-mirror