Update plugin POM

To attempt to fix publishing errors and keep our plugin more up to date,
update the plugin POM to 4.40 and increase our minimum Jenkins version
to the version in that POM, 2.249. Also update equalsverifier to 3.10
as it doesn't cause enforcer issues now.

Author: mtughan

pom.xml

@@ -3,7 +3,7 @@
 	<parent>
 		<groupId>org.jenkins-ci.plugins</groupId>
 		<artifactId>plugin</artifactId>
-		<version>3.50</version>
+		<version>4.40</version>
 	</parent>
 
 	<artifactId>scriptler</artifactId>
@@ -39,7 +39,7 @@
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.javadoc.skip>true</maven.javadoc.skip>
-		<jenkins.version>2.121.3</jenkins.version>
+		<jenkins.version>2.249</jenkins.version>
 		<java.level>8</java.level>
 	</properties>
 	<scm>
@@ -52,13 +52,20 @@
 		<dependency>
 			<groupId>org.jenkins-ci.plugins</groupId>
 			<artifactId>token-macro</artifactId>
-			<version>2.3</version>
+			<version>2.13</version>
+			<exclusions>
+				<exclusion>
+					<!-- Causes enforcer violation with Jenkins 2.249 -->
+					<groupId>org.jenkins-ci</groupId>
+					<artifactId>symbol-annotation</artifactId>
+				</exclusion>
+			</exclusions>
 		</dependency>
 
 		<dependency>
 			<groupId>org.jenkins-ci.modules</groupId>
 			<artifactId>sshd</artifactId>
-			<version>2.4</version>
+			<version>2.6</version>
 			<scope>provided</scope><!-- this is in the core -->
 		</dependency>
 
@@ -83,7 +90,7 @@
 		<dependency>
 			<groupId>nl.jqno.equalsverifier</groupId>
 			<artifactId>equalsverifier</artifactId>
-			<version>3.8.3</version>
+			<version>3.10</version>
 			<scope>test</scope>
 		</dependency>
 	</dependencies>

src/main/resources/index.html src/main/resources/index.jellysrc/main/resources/index.html renamed to src/main/resources/index.jelly

@@ -1,3 +1,4 @@
+<?jelly escape-by-default='true'?>
 <div>
 	Scriptler allows you to store/edit/execute Groovy scripts on any of the
 	slaves/nodes... no need for copy paste Groovy code anymore. Beside