Kotlin Facet: Configure facet automatically on Maven project import

compiler/util/src/org/jetbrains/kotlin/config/LanguageVersionSettings.kt

@@ -17,6 +17,7 @@
 package org.jetbrains.kotlin.config
 
 import com.intellij.openapi.module.Module
+import com.intellij.util.text.VersionComparatorUtil
 import org.jetbrains.kotlin.config.LanguageVersion.KOTLIN_1_1
 import org.jetbrains.kotlin.utils.DescriptionAware
 
@@ -59,6 +60,9 @@ enum class LanguageVersion(val versionString: String) : DescriptionAware {
         @JvmStatic
         fun fromVersionString(str: String) = values().find { it.versionString == str }
 
+        @JvmStatic
+        fun fromFullVersionString(str: String) = str.split(".", "-").let { if (it.size >= 2) fromVersionString("${it[0]}.${it[1]}") else null }
+
         @JvmField
         val LATEST = values().last()
     }