Bump version to 1.3.1

Update README.md

Bump version to 1.2.1

Merge pull request kittinunf#78 from pawin/master

Fix incorrect example in README.md

Prepare for next release/refactor a bit of code

Bump Kotlin version to 1.0.1

Fix kittinunf#64 by adding section about dependency

Update README.md

Merge pull request kittinunf#54 from kittinunf/1.0.0

Support kotlin 1.0.0

Merge pull request kittinunf#49 from kittinunf/support-1.0.0-rc-1036

Support latest Kotlin version 1.0.0-rc-1036