JetBrains/kotlin — pull request #304 by nskvortsov (2013-09-12 09:19:00+00:00)
Title: Fix extra kotlin source set structure.

There was an error attaching SourceSet for Kotlin. It caused troubles when customising Kotlin source location. It required extra `kotlin` block
Before the fix
```groovy
sourceSets {
main {
kotlin {
kotlin {
srcDir 'customLocation/source'
}
}
}
}
```
After the fix
```groovy
sourceSets {
main {
kotlin {
srcDir 'customLocation/source'
}
}
}
```