bump down java version to accomodate vagrant vbox default install

frameworks/Java/beyondj/pom.xml

@@ -75,8 +75,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>${maven.compiler.plugin}</version>
                 <configuration>
-                    <source>1.8</source>
-                    <target>1.8</target>
+                    <source>1.7</source>
+                    <target>1.7</target>
                     <encoding>UTF-8</encoding>
                 </configuration>
             </plugin>