Use stable kotlin (1.0.x) for kotlin-stdlib-gen to compile with and compile against.

Makes it easy for kontributors to run the generator.

libraries/tools/kotlin-stdlib-gen/pom.xml

@@ -12,16 +12,21 @@
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
-    <groupId>kotlin-stdlib-gen</groupId>
+    <groupId>org.jetbrains.kotlin</groupId>
     <artifactId>kotlin-stdlib-gen</artifactId>
     <version>1.1-SNAPSHOT</version>
+    <properties>
+        <kotlin.version>1.0.4</kotlin.version>
+        <kotlin.compiler.languageVersion>1.0</kotlin.compiler.languageVersion>
+        <kotlin.compiler.jdkHome>${env.JAVA_HOME}</kotlin.compiler.jdkHome>
+    </properties>
 
 
     <dependencies>
         <dependency>
             <groupId>org.jetbrains.kotlin</groupId>
             <artifactId>kotlin-stdlib</artifactId>
-            <version>${project.version}</version>
+            <version>${kotlin.version}</version>
         </dependency>
     </dependencies>
 
@@ -37,7 +42,7 @@
             <plugin>
                 <groupId>org.jetbrains.kotlin</groupId>
                 <artifactId>kotlin-maven-plugin</artifactId>
-                <version>${project.version}</version>
+                <version>${kotlin.version}</version>
 
                 <executions>
                     <execution>