Merge pull request #4 from trinhvanduong/master

Update version 3.0.6
Merge pull request #5 from trinhvanduong/master

Update version 3.0.6
Merge pull request #6 from trinhvanduong/master

Update version 3.0.6
Update README.md
Merge pull request #8 from trinhvanduong/master

Update version 3.0.7
Update README.md
Update README.md
Update tz_portfolio.xml
Revert "Update tz_portfolio.xml"

This reverts commit 8259d4bba3d7f61265c18938760ce89a5a5d717c.
update
Merge pull request #9 from trinhvanduong/master

Update version 3.0.8
Merge pull request #12 from trinhvanduong/master

Update version 3.0.9
Merge pull request #13 from trinhvanduong/master

Update Readme file for the version 3.0.9
Merge pull request #14 from trinhvanduong/master

Update version 3.1.0
Merge pull request #15 from trinhvanduong/master

Update tz_portfolio.xml file
Merge pull request #16 from trinhvanduong/master

Update language for version 3.1.0
Merge pull request #17 from trinhvanduong/master

Update Japanese language for version 3.1.0
Merge pull request #18 from trinhvanduong/master

Update parent category when create or edit category with version 3.1.0
Merge pull request #19 from trinhvanduong/master

Update version 3.1.1
Merge pull request #20 from trinhvanduong/master

Update the user's google+ link (insert rel="author") for version 3.1.1