Feature: It would be interesting to see the output in machine-readable format (JSON)

[etagwerker]

Hi there and thanks for maintaining this project! 😄

I'm working on a project that could use this feature:

rake stats --format=json

  [{
  	"name": "Mailers",
  	"lines": "4",
  	"loc": "4",
  	"classes": "1",
  	"methods": "0",
  	"m_over_c": "0",
  	"loc_over_m": "0"
  }, {
  	"name": "Models",
  	"lines": "3",
  	"loc": "3",
  	"classes": "1",
  	"methods": "0",
  	"m_over_c": "0",
  	"loc_over_m": "0"
  }, {
  	"name": "Javascripts",
  	"lines": "27",
  	"loc": "7",
  	"classes": "0",
  	"methods": "0",
  	"m_over_c": "0",
  	"loc_over_m": "0"
  }, {
  	"name": "Jobs",
  	"lines": "7",
  	"loc": "2",
  	"classes": "1",
  	"methods": "0",
  	"m_over_c": "0",
  	"loc_over_m": "0"
  }, {
  	"name": "Controllers",
  	"lines": "3",
  	"loc": "3",
  	"classes": "1",
  	"methods": "0",
  	"m_over_c": "0",
  	"loc_over_m": "0"
  }, {
  	"name": "Helpers",
  	"lines": "3",
  	"loc": "3",
  	"classes": "0",
  	"methods": "0",
  	"m_over_c": "0",
  	"loc_over_m": "0"
  }, {
  	"name": "Channels",
  	"lines": "8",
  	"loc": "8",
  	"classes": "2",
  	"methods": "0",
  	"m_over_c": "0",
  	"loc_over_m": "0"
  }, {
  	"name": "Configuration",
  	"lines": "417",
  	"loc": "111",
  	"classes": "1",
  	"methods": "0",
  	"m_over_c": "0",
  	"loc_over_m": "0"
  }, {
  	"name": "Total",
  	"lines": "472",
  	"loc": "141",
  	"classes": "7",
  	"methods": "0",
  	"m_over_c": "0",
  	"loc_over_m": "0",
  	"code_to_test_ratio": "0.0",
  	"total": true
  }]

I could submit a PR to get this started. 😄

[bronzdoc]

Closed by #20