Merge pull request #81 from nukeviet/develop

Update code from nukeviet (02/08/2014)
Download: del cache after add file
Fix lang
Format code
Merge pull request #82 from nukeviet/develop

Update code from nukeviet (08/08/2014)
Add block cat news
Merge pull request #449 from hongoctrien/develop

Add block cat news
Merge pull request #1 from nukeviet/develop

update