code: function getFile(name, next) {
      // save the callback
      fileCallBacks[name] = next;
  
      setImmediate(function () {
          try {
              ExtractContent.extractContent(name, handleGetFile, _requestFileContent);
          } catch (error) {
              console.log(error);
          }
      });
  }
docs: Provide the contents of the requested file to tern
  @param {string} name - the name of the file
  @param {Function} next - the function to call with the text of the file
  once it has been read in.