Change how kotlinc and tools display their version

- Display the Kotlin version in kotlin-gradle-plugin. This is needed
  because if "-version" is specified in compiler arguments, the "info"
  level of the message printed by the compiler in CLICompiler prevents
  it from being displayed by default (unless "--debug" is passed to
  Gradle).
- Display the version of JRE the compiler is running on. This will be
  helpful to diagnose Java 9 related issues in the future.
- In CLI, also display the executable name (kotlinc-jvm or kotlinc-js)

compiler/tests/org/jetbrains/kotlin/integration/CompilerSmokeTest.java

@@ -85,5 +85,8 @@ public class CompilerSmokeTest extends CompilerSmokeTestBase {
         assertEquals("compilation failed", 0, runCompiler("inlineOnly.compile", "-include-runtime", "inlineOnly.kt", "-d", jar));
         run("inlineOnly.run", "-cp", jar, "InlineOnly.InlineOnlyKt");
     }
-}
 
+    public void testPrintVersion() throws Exception {
+        runCompiler("test.compile", "-version");
+    }
+}