Change source level to 1.7

pom.xml

@@ -89,8 +89,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.3.2</version>
         <configuration>
-          <source>1.6</source>
-          <target>1.6</target>
+          <source>1.7</source>
+          <target>1.7</target>
         </configuration>
       </plugin>      
       <plugin>

src/eva2/optimization/strategies/ArtificialBeeColony.java

@@ -0,0 +1,7 @@
+package eva2.optimization.strategies;
+
+/**
+ *
+ */
+public class ArtificialBeeColony {
+}