#534 Get default messages from the JAR's messages_en.yml

- Using new File(class.getResource(path)) apparently is the wrong approach for in-JAR files

src/test/java/fr/xephi/authme/settings/properties/TestConfiguration.java

@@ -35,7 +35,7 @@ public final class TestConfiguration implements SettingsClass {
         newProperty(PropertyType.STRING_LIST, "features.boring.colors");
 
     public static final Property<Integer> DUST_LEVEL =
-        newProperty(PropertyType.INTEGER, "features.boring.dustLevel", -1);
+        newProperty("features.boring.dustLevel", -1);
 
     public static final Property<Boolean> USE_COOL_FEATURES =
         newProperty("features.cool.enabled", false);