Proposal for simplifying chars property

[qfox]

Instead of writing this:

  chars: { 'top': '═' , 'top-mid': '╤' , 'top-left': '╔' , 'top-right': '╗'
         , 'bottom': '═' , 'bottom-mid': '╧' , 'bottom-left': '╚' , 'bottom-right': '╝'
         , 'left': '║' , 'left-mid': '╟' , 'mid': '─' , 'mid-mid': '┼'
         , 'right': '║' , 'right-mid': '╢' , 'middle': '│' }

We could write this:

  chars: '╔═╤╗'
       + '║ │║'
       + '╟─┼╢'
       + '╚═╧╝'

[kleinfreund]

With this, overriding only some of the default characters becomes cumbersome.

[jamestalmage]

Also, it will be incredibly difficult to expand this with new characters (as in the "internal" characters for #42).