Added explicit file encoding

Author: rijnb

pom.xml

@@ -22,6 +22,9 @@
     <url>http://mapcode.com</url>
 
     <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+
         <mapcode.version>1.40</mapcode.version>
         <log4j.version>1.2.17</log4j.version>
         <slf4j.version>1.7.2</slf4j.version>