code: function getTitles(fileString) {
      var headerMatchCode = '(-){4,}[\\S\\s]+?(\\n){2,}(-){4,}';
      var headerRegExp = new RegExp(headerMatchCode, 'gi');
      var rawTitleArray = fileString.match(headerRegExp);
      var titleArray = [];
      if (rawTitleArray === null) {
          return null;
      }
      for (var i = 0, len = rawTitleArray.length; i < len; i++) {
          var tempTitle = cleanUpTitle(rawTitleArray[i]);
          //exception to the rule, claim lines
          if (tempTitle.toLowerCase().indexOf("claim lines for claim number") < 0 &&
              tempTitle.length > 0) {
              titleArray[i] = tempTitle;
          }
      }
      return titleArray;
  }
docs: Gets all section titles given the entire data file string