Merge pull request #428 from basil/lang3

Upgrade from Commons Lang 2 to 3

Author: KostyaSha

src/main/java/com/coravy/hudson/plugins/github/GithubLinkAnnotator.java

@@ -7,7 +7,7 @@
 import hudson.plugins.git.GitChangeSet;
 import hudson.scm.ChangeLogAnnotator;
 import hudson.scm.ChangeLogSet.Entry;
-import org.apache.commons.lang.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 
 import edu.umd.cs.findbugs.annotations.CheckForNull;
 import edu.umd.cs.findbugs.annotations.CheckReturnValue;

src/main/java/com/coravy/hudson/plugins/github/GithubUrl.java

@@ -1,6 +1,6 @@
 package com.coravy.hudson.plugins.github;
 
-import org.apache.commons.lang.StringUtils;
+import org.apache.commons.lang3.StringUtils;
 
 /**
  * @author <a href="mailto:stefan@coravy.com">Stefan Saasen</a>

src/main/java/org/jenkinsci/plugins/github/webhook/WebhookManager.java

@@ -6,7 +6,7 @@
 import hudson.model.Item;
 import hudson.model.Job;
 import hudson.util.Secret;
-import org.apache.commons.lang.Validate;
+import org.apache.commons.lang3.Validate;
 import org.jenkinsci.plugins.github.GitHubPlugin;
 import org.jenkinsci.plugins.github.admin.GitHubHookRegisterProblemMonitor;
 import org.jenkinsci.plugins.github.config.HookSecretConfig;