pretty arrays & fix development steps for js2coffee, to run tests

@balupton okay, I'm done with #224 

Summary:

js2coffee has two types of lists: arrays and parameter arguments

* only array elements (also nested) are displayed now in another format, parameter args are not affected
* empty array is displayed in one line: `[]`
* arrays with one item are also diplayed in one line: `["foo"]`
* arrays with more than one elements are displayed now in mutliple lines
  * the position of the opening `[`is the same
  * every element is display in a new line with extra indent
  * the closing `[`is also displayed in its own line, no extra indent here
  * commas as a element delimiter are not displayed anymore, newline is enough
* objects within an array (direct children of an array) are always displayed with the brackets `{ }` 

Example:

    module.exports = foo:
      bar:
        empty: []
        oneElement: ["one"]
        mixed: [
          1
          2
          3
          "four"
          "five"
        ]
        nestedArray: [
          "1"
          "2"
          [
            "3.1"
            "3.2"
            [
              "3.3.1"
              "3.3.2"
            ]
          ]
          "4"
          "5"
        ]
        nestedMix: [
          {
            k1: 1
            k2: 2
            k3:
              k4a: true
              k4b: [
                "i"
                "ii"
              ]
          }
          "k5"
          {
            k6: 6
            k7: 7
          }
          {
            k8: 8
            k9: 9
          }
          "k10"
        ]

---------

This is the description of the previous PR, which was merged with the new PR (pretty arrays)
 
add joe-reporter-list and change dev part of README

see #220 and #221
get acknowledgement in #226