v1.7.4

• Fix default zoom.extent to consider the SVG viewBox. #177
• Fix default zoom.filter to ignore control-click. #181
• Fix default zoom.touchable if navigator.maxTouchPoints. #162
• Fix default zoom.wheelDelta if deltaMode !== 0. #157 Thanks, @Dakkaron!
• Fix handling of filtered multitouch gestures. #124 #176 Thanks, @robinhouston and @testower!
• Fix handling of orphaned gestures. #60
• Fix emitting of end event when wheel events are ignored. #158 Thanks, @Herst!
• Fix emitting of zoom events during dbltap gestures. #75 Thanks, @cambecc!
• Update dependencies.
• Adopt exact paths for imports.
• Adopt explicit files for publishing.