Updating Apache Karaf to 4.2.2.

Change-Id: I346f21b8da7583c77e7b0612c7f2931aa63a67e0
diff --git a/tools/build/build-offline-karaf b/tools/build/build-offline-karaf
index 24d5821..9b788db 100755
--- a/tools/build/build-offline-karaf
+++ b/tools/build/build-offline-karaf
@@ -1,7 +1,7 @@
 #!/bin/bash
  
-KARAF_VERSION="4.2.1"
-KARAF_BASE_PACKAGE_VERSION="4.2.1-20181024"
+KARAF_VERSION="4.2.2"
+KARAF_BASE_PACKAGE_VERSION="4.2.2"
 KARAF_TARFILE_NAME="apache-karaf-${KARAF_VERSION}.tar"
 ADDED_BOOT_FEATURES="kar/${KARAF_VERSION},webconsole/${KARAF_VERSION},scr/${KARAF_VERSION},war/${KARAF_VERSION}"