#450 Fix copying of JAR files to plugin folder

- Create SettingsMigrationService#copyFileFromResource (inspired from CustomSettings)
- Use new method to copy missing files in plugin folder from JAR
- Create YamlFileConfiguration inside NewSetting: FileConfiguration object provided by JavaPlugin#getConfig() sets default values from the JAR's config.yml :(
- Change ConsoleLogger to take logger from plugin (work in progress)

src/test/java/fr/xephi/authme/output/Log4JFilterTest.java

@@ -219,8 +219,8 @@ public class Log4JFilterTest {
 	 * Mocks a {@link Message} object and makes it return the given formatted message.
 	 *
 	 * @param formattedMessage the formatted message the mock should return
-	
-	 * @return Message mock */
+	 * @return Message mock
+     */
 	private static Message mockMessage(String formattedMessage) {
 		Message message = Mockito.mock(Message.class);
 		when(message.getFormattedMessage()).thenReturn(formattedMessage);

src/test/java/fr/xephi/authme/output/MessagesIntegrationTest.java

@@ -1,9 +1,11 @@
 package fr.xephi.authme.output;
 
+import fr.xephi.authme.ConsoleLoggerTestInitializer;
 import fr.xephi.authme.util.WrapperMock;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 import org.junit.Before;
+import org.junit.BeforeClass;
 import org.junit.Test;
 import org.mockito.ArgumentCaptor;
 import org.mockito.Mockito;
@@ -27,6 +29,12 @@ public class MessagesIntegrationTest {
     private static final String YML_TEST_FILE = "messages_test.yml";
     private Messages messages;
 
+    @BeforeClass
+    public static void setup() {
+        WrapperMock.createInstance();
+        ConsoleLoggerTestInitializer.setupLogger();
+    }
+
     /**
      * Loads the messages in the file {@code messages_test.yml} in the test resources folder.
      * The file does not contain all messages defined in {@link MessageKey} and its contents
@@ -34,8 +42,6 @@ public class MessagesIntegrationTest {
      */
     @Before
     public void setUpMessages() {
-        WrapperMock.createInstance();
-
         URL url = getClass().getClassLoader().getResource(YML_TEST_FILE);
         if (url == null) {
             throw new RuntimeException("File '" + YML_TEST_FILE + "' could not be loaded");