Upgrading mime4j to released version 0.8.1

pom.xml

diff --git a/pom.xml b/pom.xml
index 6c380bf..7c50fb7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -91,7 +91,7 @@
         <mockito-core.version>1.9.0</mockito-core.version>
         <assertj.version>1.7.1</assertj.version>
         <guava.version>18.0</guava.version>
-        <mime4j.version>0.8.1-SNAPSHOT</mime4j.version>
+        <mime4j.version>0.8.1</mime4j.version>
     </properties>
 
     <dependencyManagement>