Fix #82, don't jail players haven't played before

There is a configuration node which can be set to true to allow this.

src/main/java/com/graywolf336/jail/enums/Lang.java

@@ -63,6 +63,8 @@ public enum Lang {
     OFFLINEJAIL("jailing"),
     /** The message sent to the jailer when they jail someone who is online. */
     ONLINEJAIL("jailing"),
+    /** The message sent to the jailer when they jail someone who has never played before. */
+    PLAYERHASNEVERPLAYEDBEFORE("jailing"),
     /** The message sent when finding out how much time a prisoner has. */
     PRISONERSTIME("jailing"),
     /** The message sent to the prisoner when they try to do something but it is protected. */