patch release 3.1.1

Signed-off-by: Hakan Ozler <ozler.hakan@gmail.com>

README.adoc

@@ -2,7 +2,7 @@
 :toclevels: 1
 
 = Poiji
-:version: v3.1.0
+:version: v3.1.1
 
 
 image:https://travis-ci.org/ozlerhakan/poiji.svg?branch=master["Build Status", link="https://travis-ci.org/ozlerhakan/poiji"] image:https://api.codacy.com/project/badge/Grade/6587e90886184da29a1b7c5634695c9d["Codacy code quality", link="https://www.codacy.com/app/ozlerhakan/poiji?utm_source=github.com&utm_medium=referral&utm_content=ozlerhakan/poiji&utm_campaign=Badge_Grade"] image:https://coveralls.io/repos/github/ozlerhakan/poiji/badge.svg?branch=master["Coverage Status", link="https://coveralls.io/github/ozlerhakan/poiji?branch=master"] image:https://img.shields.io/badge/apache.poi-5.0.0-brightgreen.svg[] image:https://app.fossa.com/api/projects/git%2Bgithub.com%2Fozlerhakan%2Fpoiji.svg?type=shield["FOSSA Status", link="https://app.fossa.com/projects/git%2Bgithub.com%2Fozlerhakan%2Fpoiji?ref=badge_shield"] image:https://img.shields.io/badge/license-MIT-blue.svg[]
@@ -23,15 +23,15 @@ In your Maven/Gradle project, first add the corresponding dependency:
 <dependency>
   <groupId>com.github.ozlerhakan</groupId>
   <artifactId>poiji</artifactId>
-  <version>3.1.0</version>
+  <version>3.1.1</version>
 </dependency>
 ----
 
 .gradle
 [source,groovy]
 ----
 dependencies {
-    compile 'com.github.ozlerhakan:poiji:3.1.0'
+    compile 'com.github.ozlerhakan:poiji:3.1.1'
 }
 ----
 

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>com.github.ozlerhakan</groupId>
     <artifactId>poiji</artifactId>
-  <version>3.1.0</version>
+  <version>3.1.1</version>
     <packaging>jar</packaging>
 
     <name>poiji</name>