#427 Add message entry for each registration type

* Added message for /register password email
* Added messages for /register password and /register email commands

src/test/java/fr/xephi/authme/process/email/AsyncAddEmailTest.java

@@ -179,7 +179,7 @@ public class AsyncAddEmailTest {
         asyncAddEmail.addEmail(player, "test@mail.com");
 
         // then
-        verify(service).send(player, MessageKey.REGISTER_EMAIL_MESSAGE);
+        verify(service).send(player, MessageKey.REGISTER_EMAIL_NO_REPEAT_MESSAGE);
         verify(playerCache, never()).updatePlayer(any(PlayerAuth.class));
     }
 

src/test/java/fr/xephi/authme/process/email/AsyncChangeEmailTest.java

@@ -210,7 +210,7 @@ public class AsyncChangeEmailTest {
         // then
         verify(dataSource, never()).updateEmail(any(PlayerAuth.class));
         verify(playerCache, never()).updatePlayer(any(PlayerAuth.class));
-        verify(service).send(player, MessageKey.REGISTER_MESSAGE);
+        verify(service).send(player, MessageKey.REGISTER_NO_REPEAT_MESSAGE);
     }
 
     private static PlayerAuth authWithMail(String email) {