Merge pull request #17 from ishkawa/release/0.2.0

Set version 0.2.0

Merge pull request #15 from ishkawa/set-version-0.1.1

Set version 0.1.1

Merge branch 'merge/5'

Merge pull request #3 from ishkawa/test-demo

 Add testing demo

Fix deployment target

Share build scheme

Add usage section to README