Merge pull request #15 from nukeviet/develop

Update code from nukeviet (13/03/2014)
Fix "error save" when change cat news
Merge pull request #16 from nukeviet/develop

Update code from nukeviet (14/03/2014)
Fix "error save" when change cat news
Fix block gobal new file (module download)
Merge pull request #159 from hongoctrien/develop

Fix "error save" when change cat news