#1119 email show permission and privacy improvements (#1312)

* #1119 new permission and email hider

* Updated commands.md

* Improved email hiding method

* Revert "Improved email hiding method"

This reverts commit cb60d7b

* New config option, updated tests, config.md and permission_nodes.md

* Moved to service import, fixed typo and updated config.md

* Removed unused imports O.o

src/main/java/fr/xephi/authme/permission/PlayerPermission.java

@@ -30,6 +30,11 @@ public enum PlayerPermission implements PermissionNode {
      */
     CHANGE_PASSWORD("authme.player.changepassword"),
 
+    /**
+     * Command permission to see the own email address.
+     */
+    SEE_EMAIL("authme.player.email.see"),
+
     /**
      * Command permission to add an email address.
      */