Bump to Gerrit v2.13.4

Change-Id: I6d080b914778044ffb265324be8c569944d7f954
diff --git a/docker/centos7/Makefile b/docker/centos7/Makefile
index 200a00f..1d215e5 100644
--- a/docker/centos7/Makefile
+++ b/docker/centos7/Makefile
@@ -1,7 +1,7 @@
 # Customise the following variable as Make parameters
 # to produce a yum.repo for a VENDOR distribution
 # Default values are pointing to GerritForge (www.gerritforge.com)
-VERSION=2.13.2
+VERSION=2.13.4
 RELEASE=1
 REPO_VERSION=1
 REPO_RELEASE=2
diff --git a/docker/ubuntu15.04/Makefile b/docker/ubuntu15.04/Makefile
index 8c946c4..91f37e8 100644
--- a/docker/ubuntu15.04/Makefile
+++ b/docker/ubuntu15.04/Makefile
@@ -1,7 +1,7 @@
 # Customise the following variable as Make parameters
 # to produce a yum.repo for a VENDOR distribution
 # Default values are pointing to GerritForge (www.gerritforge.com)
-VERSION=2.13.2
+VERSION=2.13.4
 RELEASE=1
 VENDOR=GerritForge
 VENDOR_LC=$(shell echo $(VENDOR) | tr A-Z a-z)
diff --git a/fpm/Makefile b/fpm/Makefile
index 05b2d39..7c38b36 100644
--- a/fpm/Makefile
+++ b/fpm/Makefile
@@ -1,4 +1,4 @@
-VERSION=2.13.2
+VERSION=2.13.4
 URL=http://gerrit-releases.storage.googleapis.com/gerrit-$(VERSION).war
 CI_URL=https://gerrit-ci.gerritforge.com/
 RELEASE=1