enabled PonyManager.java
set pony universe upon creation

Signed-off-by: CorriePie <corriekay.pinkie@outlook.com>
cleaned up constructor
removed node whenever last permission is deleted

Signed-off-by: CorriePie <corriekay.pinkie@outlook.com>
fixed command method

note: always use override annotation, so this thing can be prevented in the future

Signed-off-by: CorriePie <corriekay.pinkie@outlook.com>
added Override

Signed-off-by: CorriePie <corriekay.pinkie@outlook.com>