Set JavaDoc encoding to UTF-8

Author: str4d

pom.xml

@@ -98,6 +98,9 @@
         <artifactId>maven-javadoc-plugin</artifactId>
         <version>2.9.1</version>
         <configuration>
+          <charset>UTF-8</charset>
+          <docencoding>UTF-8</docencoding>
+          <encoding>UTF-8</encoding>
           <header>&lt;script type='text/x-mathjax-config'&gt;
   MathJax.Hub.Config({
     tex2jax: {