Mikhail Yakushin

https://kotlinlang.org/docs/reference/coroutines/flow.html

https://kotlinlang.org/docs/reference/multi-declarations.html

> How about some coroutines? I don't think there's any other feature that makes Kotlin win by such a large margin as replacing a bunch of unwieldy, nested callbacks with...

Qulice README badge

32

Let's create a Qulice README badge, similar to the cactoos and rultor badges.

Prohibit classes that do not implement any interfaces

3

Let's create a new Checkstyle rule that will ban classes that do not implement any interfaces.

Rultor fails when newline char is used in a command

26

When the newline character is used in any of the script commands Rultor fails with an error: `... is not a valid repository/tag: invalid reference format.` [Rultor build log](http://www.rultor.com/t/12177-311771053)