Version 2.1 CLI

Hi,

I am trying to upgrade from v2.0.1 to v2.1 and we only use the CLI.  Been trying to get this to run but getting errors.

I even ran the help on the CLI jar file and received the following issues.  java -jar validator-cli-2.1.0.jar -help

Exception in thread "main" java.lang.UnsupportedClassVersionError: org/opencdisc
/validator/cli/Main : Unsupported major.minor version 51.0
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClassCond(Unknown Source)
        at java.lang.ClassLoader.defineClass(Unknown Source)
        at java.security.SecureClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.access$000(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
Could not find the main class: org.opencdisc.validator.cli.Main. Program will exit.

Can you please help with this as we want to upgrade but we also want to use the CLI.

Thanks,

Steve