Upgrade pom.xml to use Java 7

Author: yasserg

pom.xml

@@ -39,8 +39,8 @@
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-compiler-plugin</artifactId>
 				<configuration>
-					<source>1.6</source>
-					<target>1.6</target>
+					<source>1.7</source>
+					<target>1.7</target>
 				</configuration>
 				<version>2.3.2</version>
 			</plugin>