Set compiler to Java 1.8

Author: artaius

build.xml

@@ -22,7 +22,7 @@
         <mkdir dir="${build.dir}" />
         <javac
                 destdir="${build.dir}"
-                failonerror="true" source="1.6" target="1.6" debug="false" encoding="ISO-8859-1">
+                failonerror="true" source="1.8" target="1.8" debug="false" encoding="ISO-8859-1">
 
             <src refid="srcs" />