message: fix(weex): support data class type that is string
  close
diff: @@ -44,6 +44,8 @@ function makeClassList (data: VNodeData): Array<string> {
  classList.push.apply(classList, dataClass)
  } else if (isObject(dataClass)) {
  classList.push.apply(classList, Object.keys(dataClass).filter(className => dataClass[className]))
  + } else if (typeof dataClass === 'string') {
  + classList.push.apply(classList, dataClass.trim().split(/\s+/))
  }
  return classList
  }
  