Update woothee
Add os_version test
Add os_version field
Fix for os_version of Windows
Fix for os_version of misc os
Fix for os_version of mobilephone and smartphone
Fix for os_version of PlayStation
Add os_version to sample code
Merge pull request #12 from okonomi/os_version

Support parsing OS version
Bump
Add Authors
Change composer version specification
Write Installation section in README.md
Merge pull request #13 from woothee/prepare-v1.0.0

Prepare v1.0.0