code: function _includeProjectScope(filename) {
          filename = filename || currentFilename;
          if (!filename || !projectDirectory) {
              return false;
          }
          return FileUtils.getRelativeFilename(projectDirectory, filename) !== undefined;
      }
docs: @private
  
  Determines whether the project Scope should be included based on whether
  the currently edited file is within the project.
  
  @param {string=} filename Full path to edited file
  @return {boolean} true if the project Scope should be included.