Updated to Java 8

pom.xml

@@ -119,8 +119,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.1</version>
                 <configuration>
-                    <source>1.7</source>
-                    <target>1.7</target>
+                    <source>1.8</source>
+                    <target>1.8</target>
                     <encoding>${project.build.sourceEncoding}</encoding>
                     <compilerArgument>-Xlint:unchecked</compilerArgument>