Set Gerrit to 3.14.0-rc4

Change-Id: I45582b9d662352117afed5a0099548f2d7ab7aa7
diff --git a/Version.mk b/Version.mk
index d4e5868..8365475 100644
--- a/Version.mk
+++ b/Version.mk
@@ -1,4 +1,4 @@
 VERSION=3.14.0
-WAR_VERSION=3.14.0-rc3
+WAR_VERSION=3.14.0-rc4
 BRANCH=stable-3.14
-RELEASE=0rc3
+RELEASE=0rc4