Testing - change to non-reflection WrapperMock test setup

Replaced many classes to use Wrapper to get singletons and replaced the test setups to use the WrapperMock instead of setting fields through reflection

src/main/java/fr/xephi/authme/command/executable/email/AddEmailCommand.java

@@ -3,6 +3,7 @@ package fr.xephi.authme.command.executable.email;
 import fr.xephi.authme.AuthMe;
 import fr.xephi.authme.command.CommandParts;
 import fr.xephi.authme.command.ExecutableCommand;
+import fr.xephi.authme.util.Wrapper;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 
@@ -22,7 +23,7 @@ public class AddEmailCommand extends ExecutableCommand {
         String playerMailVerify = commandArguments.get(1);
 
         // Get the player and perform email addition
-        final AuthMe plugin = AuthMe.getInstance();
+        final AuthMe plugin = Wrapper.getInstance().getAuthMe();
         final Player player = (Player) sender;
         plugin.getManagement().performAddEmail(player, playerMail, playerMailVerify);
         return true;

src/main/java/fr/xephi/authme/command/executable/email/ChangeEmailCommand.java

@@ -3,6 +3,7 @@ package fr.xephi.authme.command.executable.email;
 import fr.xephi.authme.AuthMe;
 import fr.xephi.authme.command.CommandParts;
 import fr.xephi.authme.command.ExecutableCommand;
+import fr.xephi.authme.util.Wrapper;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 
@@ -22,7 +23,7 @@ public class ChangeEmailCommand extends ExecutableCommand {
         String playerMailNew = commandArguments.get(1);
 
         // Get the player instance and execute action
-        final AuthMe plugin = AuthMe.getInstance();
+        final AuthMe plugin = Wrapper.getInstance().getAuthMe();
         final Player player = (Player) sender;
         plugin.getManagement().performChangeEmail(player, playerMailOld, playerMailNew);
         return true;

src/main/java/fr/xephi/authme/command/executable/email/RecoverEmailCommand.java

@@ -11,6 +11,7 @@ import fr.xephi.authme.security.RandomString;
 import fr.xephi.authme.settings.MessageKey;
 import fr.xephi.authme.settings.Messages;
 import fr.xephi.authme.settings.Settings;
+import fr.xephi.authme.util.Wrapper;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 
@@ -35,8 +36,9 @@ public class RecoverEmailCommand extends ExecutableCommand {
         final String playerName = player.getName();
 
         // Command logic
-        final AuthMe plugin = AuthMe.getInstance();
-        final Messages m = plugin.getMessages();
+        final Wrapper wrapper = Wrapper.getInstance();
+        final AuthMe plugin = wrapper.getAuthMe();
+        final Messages m = wrapper.getMessages();
 
         if (plugin.mail == null) {
             m.send(player, MessageKey.ERROR);