Merge branch release/1.5.0 into master

Upgrade checkstyle to 7.1

CHANGELOG

@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+1.5.0
+------
+
+* Upgrade checkstyle to 7.1
+
 1.4.0
 ------
 

pom.xml

@@ -4,7 +4,7 @@
 
     <groupId>net.kemitix</groupId>
     <artifactId>kemitix-parent</artifactId>
-    <version>1.4.0</version>
+    <version>1.5.0</version>
     <packaging>pom</packaging>
 
     <name>Kemitix Parent</name>
@@ -46,7 +46,7 @@
         <maven-gpg-plugin.version>1.6</maven-gpg-plugin.version>
         <maven-deploy-plugin.version>2.8.2</maven-deploy-plugin.version>
         <maven-checkstyle-plugin.version>2.17</maven-checkstyle-plugin.version>
-        <checkstyle.version>7.0</checkstyle.version>
+        <checkstyle.version>7.1</checkstyle.version>
         <sevntu-checkstyle-maven-plugin.version>1.21.0</sevntu-checkstyle-maven-plugin.version>
         <maven-compiler-plugin.version>3.5.1</maven-compiler-plugin.version>
         <maven-surefire-plugin.version>2.19.1</maven-surefire-plugin.version>