[Violation] Added non-passive event listener to a scroll-blocking 'touchmove' event. Consider marking event handler as 'passive' to make the page more responsive.

**Expected Behavior**

c3.js should be optimized for performance

**Current Behavior**

Chrome throws warning
`[Violation] Added non-passive event listener to a scroll-blocking 'touchstart' event. Consider marking event handler as 'passive' to make the page more responsive.`

**Possible Solution**
Change
addEventListener(eventType, method); to
addEventListener(eventType, method. {passive: true});

**Steps to Reproduce (for bugs)**
Create a chart and check the console.

**Environment**
c3.js version: 0.4.13
Browser name and version: Chrome 59.0.3071.115