add joe-reporter-list for tests
change description to install js2coffee for development (to run tests)

see #220
use constant for indent
pretty print for array, see#224
adjust test for pretty array format
add tests for pretty format
change description due to #220
cake binary call if coffee is not installed globally
Merge pull request #227 from timaschew/master

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