set less.hasFinished to refresh() promise

fix white space

lib/less-browser/index.js

@@ -243,8 +243,8 @@ less.modifyVars = function(record) {
 };
 
 less.refresh = function (reload, modifyVars) {
- return new PromiseConstructor(function(resolve, reject) {
- var startTime, endTime;
+ less.hasFinished = new PromiseConstructor(function (resolve, reject) {
+ var startTime, endTime, totalMilliseconds;
  startTime = endTime = new Date();
 
  loadStyleSheets(function (e, css, _, sheet, webInfo) {
@@ -262,14 +262,22 @@ less.refresh = function (reload, modifyVars) {
  }
  less.logger.info("css for " + sheet.href + " generated in " + (new Date() - endTime) + 'ms');
  if (webInfo.remaining === 0) {
- less.logger.info("less has finished. css generated in " + (new Date() - startTime) + 'ms');
- resolve();
+ totalMilliseconds = new Date() - startTime;
+ less.logger.info("less has finished. css generated in " + totalMilliseconds + 'ms');
+ resolve({
+ startTime: startTime,
+ endTime: endTime,
+ totalMilliseconds: totalMilliseconds,
+ sheets: less.sheets.length
+ });
  }
  endTime = new Date();
  }, reload, modifyVars);
 
  loadStyles(modifyVars);
  });
+
+ return less.hasFinished;
 };
 
 less.refreshStyles = loadStyles;