Merge pull request #55 from pyexcel/dev

0.7.1 release

🐛 fix syntax error

Merge pull request #43 from pyexcel/dev

Release 0.6.2

Merge pull request #39 from pyexcel/dev

release 0.6.1

Merge pull request #38 from pyexcel/dev

release 0.6.0

🥚 🎡 release 0.5.9

📚 update change log

Merge pull request #27 from pyexcel/dev

release v0.5.8: read cell error as #N/A

Merge pull request #27 from pyexcel/dev

release v0.5.8: read cell error as #N/A

🥚 🎡 release 0.5.7, fixing pyexcel/pyexcel#135, pyexcel/pyexcel#54