Further cleanup; started creating a gradle-file.

build.gradle

@@ -0,0 +1 @@
+apply plugin: 'java'

build.xml

@@ -1,36 +0,0 @@
-<project default="main">
-	<path id="classpath">
-		<fileset dir="lib/" includes="**/*.jar" />
-	</path>
-	
-	<target name="clean">
-		<delete dir="build" />
-	</target>
-	
-	<target name="build">
-		<mkdir dir="build/classes" />
-		<javac srcdir="src" destdir="build/classes" classpathref="classpath"/>
-	</target>
-	
-	<target name="jar" depends="build">
-		<mkdir dir="build/jar" />
-		<jar destfile="build/jar/telegram_backup.jar"
-		basedir="build/classes">
-			<manifest>
-				<attribute name="Main-Class"
-				value="de.fabianonline.telegram_backup.Main" />
-			</manifest>
-		</jar>
-	</target>
-	
-	<target name="run" depends="jar">
-		<java classname="de.fabianonline.telegram_backup.Main" fork="true" >
-			<classpath>
-				<path refid="classpath" />
-				<path location="build/jar/telegram_backup.jar" />
-			</classpath>
-		</java>
-	</target>
-	
-	<target name="main" depends="clean,run" />
-</project>