fix unknown object type DocumentTouch
fix unknown object type DocumentTouch

fixes the closure compiler error

see b906a73ff3f0eedff8c5ec29870c01c70b7586dd

openlayers/ol2,PetrDlouhy/openlayers,kartverket/openlayers,kartverket/openlayers,sanak/ol2,kartverket/openlayers,sbrunner/openlayers,wet-boew/openlayers,dracic/openlayers,pgiraud/openlayers,colllin/openlayers,sanak/ol2,pgiraud/openlayers,PublicStuff/openlayers,v5analytics/openlayers,sanak/ol2,v5analytics/openlayers,owenmead/openlayers,adh1365/openlayers,elbakai/openlayers,avinet/openlayers,altamiracorp/openlayers,sbrunner/openlayers,pvalsecc/openlayers,Gnafu/openlayers,pvalsecc/openlayers,dracic/openlayers,adh1365/openlayers,PublicStuff/openlayers,adh1365/openlayers,kartverket/openlayers,colllin/openlayers,pgiraud/openlayers,sbrunner/openlayers,georchestra/openlayers,avinet/openlayers,pvalsecc/openlayers,colllin/openlayers,shevawen/openlayers,sbrunner/openlayers,PetrDlouhy/openlayers,elbakai/openlayers,altamiracorp/openlayers,adh1365/openlayers,wet-boew/openlayers,owenmead/openlayers,Gnafu/openlayers,PetrDlouhy/openlayers,openlayers/ol2,wet-boew/openlayers,shevawen/openlayers,pgiraud/openlayers,PetrDlouhy/openlayers,altamiracorp/openlayers,shevawen/openlayers,openlayers/ol2,elbakai/openlayers,PublicStuff/openlayers,georchestra/openlayers,v5analytics/openlayers,shevawen/openlayers,Gnafu/openlayers,Gnafu/openlayers,avinet/openlayers,sanak/ol2,elbakai/openlayers,wet-boew/openlayers,altamiracorp/openlayers,openlayers/ol2,dracic/openlayers,dracic/openlayers,colllin/openlayers,v5analytics/openlayers,owenmead/openlayers,owenmead/openlayers,avinet/openlayers,pvalsecc/openlayers,PublicStuff/openlayers,georchestra/openlayers