Minor - adjust PlayerAuth builder methods

- Rename hash() to password()
- Add location(Location) builder method
- Replace usages of password(new EncryptedPassword(hash, salt)) to the more terse password(String, String) builder method

src/main/java/fr/xephi/authme/converter/RakamakConverter.java

@@ -78,7 +78,7 @@ public class RakamakConverter implements Converter {
                     .name(playerName)
                     .realName(playerName)
                     .ip(ip)
-                    .hash(psw)
+                    .password(psw)
                     .lastLogin(System.currentTimeMillis())
                     .build();
                 database.saveAuth(auth);