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)

libraries/tools/kotlin-maven-plugin/src/it/simple/expected.log

@@ -1,3 +1,3 @@
-[INFO] Kotlin Compiler version @snapshot@
+[INFO] Kotlin version @snapshot@ (JRE <jre-version>)
 [INFO] Compiling Kotlin sources from [/src/main/kotlin]
 [INFO] Module name is test-project

libraries/tools/kotlin-maven-plugin/src/it/simple/verify.groovy

@@ -35,7 +35,8 @@ State state = new File(basedir, "build.log").readLines().collect { it.replaceAll
                 replaceAll(/[0-9]+\s*ms/, "LLL ms").
                 trim().
                 replaceAll(/^\[[A-Z]+\]$/, "").
-                replaceAll(/version [0-9a-z-+\.]+/, "version @snapshot@")
+                replaceAll(/version [0-9a-z-+\.]+/, "version @snapshot@").
+                replaceAll(/\(JRE .+\)/, "(JRE <jre-version>)")
 
         if (filtered != "") {
             acc.lines << filtered

libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven/KotlinCompileMojoBase.java

@@ -198,8 +198,8 @@ public abstract class KotlinCompileMojoBase<A extends CommonCompilerArguments> e
 
     @Override
     public void execute() throws MojoExecutionException, MojoFailureException {
-
-        getLog().info("Kotlin Compiler version " + KotlinCompilerVersion.VERSION);
+        getLog().info("Kotlin version " + KotlinCompilerVersion.VERSION +
+                " (JRE " + System.getProperty("java.runtime.version") + ")");
 
         if (!hasKotlinFilesInSources()) {
             getLog().warn("No sources found skipping Kotlin compile");