Merge branch 'stable-2.15' into stable-2.16

* stable-2.15:
  Make WebSessionManager.Val#getAccountId public
  Bug fixes for gr-group-members
  dev-plugins: Recommend cloning examples project instead of cookbook-plugin

Change-Id: I9cbfa6b60fb937eaaccef21902fcb889a55bd12d
diff --git a/Documentation/dev-plugins.txt b/Documentation/dev-plugins.txt
index 0198790..c65acb7 100644
--- a/Documentation/dev-plugins.txt
+++ b/Documentation/dev-plugins.txt
@@ -34,10 +34,10 @@
 == Getting started
 
 To get started with the development of a plugin clone the sample
-plugin:
+plugins:
 
 ----
-$ git clone https://gerrit.googlesource.com/plugins/cookbook-plugin
+$ git clone https://gerrit.googlesource.com/plugins/examples
 ----
 
 This is a project that demonstrates the various features of the
diff --git a/java/com/google/gerrit/httpd/WebSessionManager.java b/java/com/google/gerrit/httpd/WebSessionManager.java
index cb1e965..d09b4dd 100644
--- a/java/com/google/gerrit/httpd/WebSessionManager.java
+++ b/java/com/google/gerrit/httpd/WebSessionManager.java
@@ -215,7 +215,15 @@
       return expiresAt;
     }
 
-    Account.Id getAccountId() {
+    /**
+     * Parse an Account.Id.
+     *
+     * <p>This is public so that plugins that implement a web session, can also implement a way to
+     * clear per user sessions.
+     *
+     * @return account ID.
+     */
+    public Account.Id getAccountId() {
       return accountId;
     }