Update readme for version 0.1.0
Merge pull request #8 from wongak/0.1.0

Update readme for version 0.1.0
Update README with project Wiki Info.
Update phpdoc comment for side-effect.
Merge pull request #9 from wongak/0.1.0

Docs updated
Merge pull request #10 from fritz-payment/0.1.0

Merge 0.1.0 back into master.