#347 Use NewSetting properties for change password command

src/main/java/fr/xephi/authme/settings/Settings.java

@@ -7,6 +7,7 @@ import fr.xephi.authme.ConsoleLogger;
 import fr.xephi.authme.datasource.DataSource;
 import fr.xephi.authme.datasource.DataSource.DataSourceType;
 import fr.xephi.authme.security.HashAlgorithm;
+import fr.xephi.authme.util.StringUtils;
 import fr.xephi.authme.util.Wrapper;
 import org.bukkit.configuration.file.YamlConfiguration;
 
@@ -311,7 +312,7 @@ public final class Settings {
         try {
             return Files.toString(EMAIL_FILE, Charsets.UTF_8);
         } catch (IOException e) {
-            ConsoleLogger.showError(e.getMessage());
+            ConsoleLogger.showError("Error loading email text: " + StringUtils.formatException(e));
             ConsoleLogger.writeStackTrace(e);
             return "";
         }

src/main/java/fr/xephi/authme/settings/custom/RestrictionSettings.java

@@ -158,7 +158,7 @@ public class RestrictionSettings implements SettingsClass {
         newProperty("settings.restrictions.noTeleport", false);
 
     @Comment("Regex syntax for allowed chars in passwords")
-    public static final Property<String> ALLOWED_PASSWORD_CHARS =
+    public static final Property<String> ALLOWED_PASSWORD_REGEX =
         newProperty("settings.restrictions.allowedPasswordCharacters", "[\\x21-\\x7E]*");
 
     @Comment("Force survival gamemode when player joins?")

src/main/java/fr/xephi/authme/settings/custom/SecuritySettings.java

@@ -51,6 +51,10 @@ public class SecuritySettings implements SettingsClass {
     public static final Property<Integer> MIN_PASSWORD_LENGTH =
         newProperty("settings.security.minPasswordLength", 5);
 
+    @Comment("Maximum length of password")
+    public static final Property<Integer> MAX_PASSWORD_LENGTH =
+        newProperty("settings.security.passwordMaxLength", 30);
+
     @Comment({
         "This is a very important option: every time a player joins the server,",
         "if they are registered, AuthMe will switch him to unLoggedInGroup.",