Added Travis CI build status button
Added Travis CI build status button
mattlucas121/ngHandsontable,mattlucas121/ngHandsontable,deenairn/ngHandsontable,viktor-hunko/ngHandsontable,handsontable/ngHandsontable,handsontable/ngHandsontable,viktor-hunko/ngHandsontable,deenairn/ngHandsontable