Incrementalified

as per https://github.com/jenkinsci/incrementals-tools/blob/master/README.md#enabling-incrementals-the-easy-way

Author: jakub-bochenski

.mvn/extensions.xml

@@ -0,0 +1,7 @@
+<extensions xmlns="http://maven.apache.org/EXTENSIONS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/EXTENSIONS/1.0.0 http://maven.apache.org/xsd/core-extensions-1.0.0.xsd">
+  <extension>
+    <groupId>io.jenkins.tools.incrementals</groupId>
+    <artifactId>git-changelist-maven-extension</artifactId>
+    <version>1.0-beta-7</version>
+  </extension>
+</extensions>

.mvn/maven.config

@@ -0,0 +1,2 @@
+-Pconsume-incrementals
+-Pmight-produce-incrementals

pom.xml

@@ -3,16 +3,19 @@
   <parent>
     <groupId>org.jenkins-ci.plugins</groupId>
     <artifactId>plugin</artifactId>
-    <version>2.7</version><!-- which version of Jenkins is this plugin built against? -->
+    <version>3.10</version><!-- which version of Jenkins is this plugin built against? -->
   </parent>
 
-    <!--<properties>-->
-        <!--<jenkins.version>2.7.4</jenkins.version>-->
-    <!--</properties>-->
+    <properties>
+        <revision>1.7.1</revision>
+        <changelist>-SNAPSHOT</changelist>
+        <java.level>8</java.level>
+	<!--<jenkins.version>2.7.4</jenkins.version>-->
+    </properties>
 
   <artifactId>stash-pullrequest-builder</artifactId>
   <name>Stash Pullrequest Builder Plugin</name>
-  <version>1.7.1-SNAPSHOT</version>
+  <version>${revision}${changelist}</version>
   <description>This Jenkins plugin builds pull requests from Stash and will report the test results.</description>
   <packaging>hpi</packaging>
   <url>https://wiki.jenkins-ci.org/display/JENKINS/Stash+pullrequest+builder+plugin</url>
@@ -21,7 +24,7 @@
       <connection>scm:git:ssh://github.com/jenkinsci/stash-pullrequest-builder-plugin.git</connection>
       <developerConnection>scm:git:ssh://git@github.com/jenkinsci/stash-pullrequest-builder-plugin.git</developerConnection>
       <url>https://github.com/jenkinsci/stash-pullrequest-builder-plugin</url>
-      <tag>HEAD</tag>
+      <tag>${scmTag}</tag>
   </scm>
 
   <developers>