update connector version

bump plugin pom version

Author: davidvanlaatum

pom.xml

@@ -3,7 +3,7 @@
   <parent>
     <groupId>org.jenkins-ci.plugins</groupId>
     <artifactId>plugin</artifactId>
-    <version>1.466</version><!-- which version of Jenkins is this plugin built against? -->
+    <version>2.26</version>
   </parent>
 
   <groupId>org.jenkins-ci.plugins</groupId>
@@ -13,11 +13,15 @@
 
   <url>https://wiki.jenkins-ci.org/display/JENKINS/MySQL+Database+Plugin</url>
 
+  <properties>
+    <java.level>8</java.level>
+  </properties>
+
   <dependencies>
     <dependency>
       <groupId>mysql</groupId>
       <artifactId>mysql-connector-java</artifactId>
-      <version>5.1.38</version>
+      <version>5.1.42</version>
     </dependency>
     <dependency>
       <groupId>${project.groupId}</groupId>

src/main/resources/index.jelly

@@ -1,3 +1,4 @@
+<?jelly escape-by-default='true'?>
 <div>
   Adds MySQL connectivity to the database plugin
-</div>
+</div>