With gradle > 5.0 `publish()` helper call should be done before
`noDefaultJar()` or any other artifact hacks, otherwise singing plugin doesn't sign any jars
When plugins DSL is used, there is no need to
manually generate typesafe accessors for extensions and
conventions (by running `./gradlew kotlinDslAccessorsSnapshot`).
`kotlin-android-extensions-runtime` and `kotlin-android-extensions-compiler`
had `com.google.android:android` as a provided dependency, but
during transition to Kotlin Gradle build the dependency was declared
as `runtime` instead of `compileOnly`.
Ilya Chernikov