Update cookbook-plugin

* Cookbook-plugin: Add GWT greetings dialog

Change-Id: I32e705b6a103ab5f50f5bb48b0879a7a167cdc1c
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>

plugins/cookbook-plugin

diff --git a/plugins/cookbook-plugin b/plugins/cookbook-plugin
index 1b1aca1..2526e06 160000
--- a/plugins/cookbook-plugin
+++ b/plugins/cookbook-plugin
@@ -1 +1 @@
-Subproject commit 1b1aca1dd61c033840bc465fa8646c22f5467f3a
+Subproject commit 2526e0612d0309fb92aae962ccf2b0abcf5b6131