code: function logAll(files, cb) {
      _walkAll(files, function(err, node) {
          if (err) {
              exports.log(err.name + ': ' + err.message + ' in ' + err.file + ':' + err.line + ':' + err.column);
              if (cb) cb(err);
          }
  
          exports.log('Found console.' + node.type + ' at ' + node.file + ':' + node.line + ':' + node.column + ' with '
                      + node.arguments.length + ' arg(s)');
      }).then(function(allNodes) {
          if (cb) cb(null, allNodes);
      });
  }
docs: Logs all found instances of console.log and calls the callback specifying if there were any instances, or an error
  if one occurred
  
  @param {String} files A file glob
  @param {Function?} cb Called with arguments <Error, Array>. If there was an error it will not be called again,
  otherwise it will be called at the end with null as the error value and the array of nodes
  found.