Fix Java source version to 1.7, set source encoding to UTF-8

Author: szarnyasg

pom.xml

@@ -9,6 +9,12 @@
   <version>0.2.5</version>
   <packaging>jar</packaging>
 
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.source>1.7</maven.compiler.source>
+    <maven.compiler.target>1.7</maven.compiler.target>
+  </properties>
+
   <dependencies>
     <dependency>
       <groupId>junit</groupId>
@@ -40,7 +46,7 @@
       <groupId>ca.umontreal.iro</groupId>
       <artifactId>ssj</artifactId>
       <version>2.5</version>
-    </dependency>     
+    </dependency>
     <dependency>
       <groupId>com.google.code.gson</groupId>
       <artifactId>gson</artifactId>