version bump

Author: tk

README.MD

@@ -20,7 +20,7 @@ This library is hosted in the [Maven Central Repository](https://maven-badges.he
 <dependency>
 	<groupId>net.markenwerk</groupId>
 	<artifactId>utils-mail-dkim</artifactId>
-	<version>1.3.1</version>
+	<version>1.4.0</version>
 </dependency>
 ```
 

pom.xml

@@ -5,7 +5,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>net.markenwerk</groupId>
 	<artifactId>utils-mail-dkim</artifactId>
-	<version>1.3.1</version>
+	<version>1.4.0</version>
 	<packaging>jar</packaging>
 
 	<name>${project.groupId}:${project.artifactId}</name>