Merge pull request #425 from InShadow/patch-javadoc-encoding

Forcing the project to always build JavaDoc with UTF-8 encoding.

build.gradle

@@ -91,6 +91,8 @@ task mergedJavadoc(type: Javadoc, description: 'Creates Javadoc from all the pro
     title = 'jMonkeyEngine3'
     destinationDir = mkdir("dist/javadoc")
     
+    options.encoding = 'UTF-8'
+
     // Allows Javadoc to be generated on Java 8 despite doclint errors.
     if (JavaVersion.current().isJava8Compatible()) {
         options.addStringOption('Xdoclint:none', '-quiet')