exoplatform/ecms — pull request #21 by anhvurz90 (2012-06-06 03:32:05+00:00)
Title: Fix/2.1.x/ecms 3863

1.Add jcr:lastModified value to the preview URL so when the document is changed, the URL is changed, leading to the reloading of preview image
2.In PDFViewerRESTService, update cache when document is modified.