replace simplelogger with log4j2

pom.xml

@@ -110,10 +110,6 @@
 			<groupId>org.slf4j</groupId>
 			<artifactId>slf4j-api</artifactId>
 		</dependency>
-		<dependency>
-			<groupId>org.slf4j</groupId>
-			<artifactId>slf4j-simple</artifactId>
-		</dependency>
 		<dependency>
 			<groupId>com.googlecode.libphonenumber</groupId>
 			<artifactId>libphonenumber</artifactId>
@@ -231,6 +227,14 @@
 			<artifactId>GoogleConnectors</artifactId>
 			<version>0.0.2</version>
 		</dependency>
+		<dependency>
+			<groupId>org.apache.logging.log4j</groupId>
+			<artifactId>log4j-api</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>org.apache.logging.log4j</groupId>
+			<artifactId>log4j-core</artifactId>
+		</dependency>
 	</dependencies>
 
 	<dependencyManagement>

src/main/resources/log4j2.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration status="INFO">
+    <Appenders>
+        <Console name="Console" target="SYSTEM_OUT">
+            <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
+        </Console>
+        <File name="MyFile" fileName="all.log" immediateFlush="false" append="false">
+            <PatternLayout pattern="%d{yyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
+        </File>
+    </Appenders>
+    <Loggers>
+        <Root level="info">
+            <AppenderRef ref="Console" />
+            <AppenderRef ref="MyFile"/>
+        </Root>
+        
+        <Logger name="de.kreth.vaadin.clubhelper" additivity="false" level="trace">
+            <AppenderRef ref="Console" />
+            <AppenderRef ref="MyFile"/>
+        </Logger>
+         
+    </Loggers>
+</Configuration>

src/main/resources/simplelogger.properties

@@ -1,8 +0,0 @@
-org.slf4j.simpleLogger.defaultLogLevel=trace
-org.slf4j.simpleLogger.logFile=System.err
-org.slf4j.simpleLogger.showThreadName=false
-
-org.slf4j.simpleLogger.log.de.kreth.vaadin.clubhelper=trace
-org.slf4j.simpleLogger.log.org=info
-org.slf4j.simpleLogger.log.com=info
-org.slf4j.simpleLogger.log.net=info