Unsupport format table with Chinese character

[xdc0209]

I set atom Font "新宋体"

My md is as below:

操作类型	操作	使用场景	参数与返回值
查询	HEAD	应用层心跳	通过URI Path片断或者查询参数传递参数，响应消息无Body

Format with tidy-markdown

Format with markdown-writer

I temporarily modify .atom\packages\tidy-markdown\node_modules\tidy-markdown\lib\tables.coffee to avoid the problem

longestStringInArray = (array) ->
  longest = 0
  for str in array
    ######### I modify here #########
    len = str.replace(/[^\u0000-\u00ff]/g,"aa").length;
    if len > longest then longest = len
  return longest

formatRow = (row, alignments, columnWidths) ->
  # apply padding around each cell for alignment and column width
  for i in [0...row.length]
    row[i] = (
      switch alignments[i]
        when 'right'
          pad(columnWidths[i], row[i])
        when 'center'
          # rounding causes a bias to the left because we can't have half a char
          whitespace = columnWidths[i] - row[i].length
          leftPadded = pad(Math.floor(whitespace / 2) + row[i].length, row[i])
          pad(leftPadded, Math.ceil(whitespace / 2) + leftPadded.length)
        else
          ######### I modify here #########
          # left is the default alignment when formatting
          pad(row[i], columnWidths[i] - (row[i].replace(/[^\u0000-\u00ff]/g,"aa").length - row[i].length))
    )

  # trimRight is to remove any trailing whitespace added by the padding
  joinColumns(row).trimRight()

I write coffeescript and javascript for the first time, the code is a bit ugly, hope you can fix it in the new realse.