Updated log config [ci skip]

main/ant-kit/src/main/resources/logback.xml

@@ -23,14 +23,15 @@
 	</appender>
 	
 	<appender name="UPGRADE_FILE" class="ch.qos.logback.core.FileAppender">
-		<file>${user.home}/.Cryptomator/cryptomator.log</file>
+		<file>${user.home}/.Cryptomator/upgrade.log</file>
+		<append>true</append>
 		<encoder>
 			<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
 		</encoder>
 	</appender>
 
 	<logger name="org.cryptomator" level="INFO" />
-	<logger name="org.eclipse.jetty.server.Server" level="INFO" />
+	<logger name="org.eclipse.jetty.server.HttpChannel" level="INFO" />
 	<logger name="org.cryptomator.ui.model" level="INFO">
 		<appender-ref ref="UPGRADE_FILE" />
 	</logger>

main/launcher/src/main/java/org/cryptomator/logging/DebugMode.java

@@ -28,7 +28,7 @@ public class DebugMode {
 	private static final Collection<LoggerUpgrade> LOGGER_UPGRADES = asList( //
 			loggerUpgrade(org.slf4j.Logger.ROOT_LOGGER_NAME, Level.INFO), //
 			loggerUpgrade("org.cryptomator", Level.TRACE), //
-			loggerUpgrade("org.eclipse.jetty.server.Server", Level.DEBUG) //
+			loggerUpgrade("org.eclipse.jetty.server.HttpChannel", Level.DEBUG) //
 	);
 
 	private final Settings settings;