Upgrade gitiles-servlet and blame-cache to 0.3-4

Aligns the versions of JGit and soy with the versions used
in Gerrit.

Change-Id: Ia831f850bf74cab20b30d08c0a5f17498dcf239e
diff --git a/WORKSPACE b/WORKSPACE
index 6f1ee10..83ee604 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -751,7 +751,7 @@
     sha1 = "f7be08ec23c21485b9b5a1cf1654c2ec8c58168d",
 )
 
-GITILES_VERS = "0.3-3"
+GITILES_VERS = "0.3-4"
 
 GITILES_REPO = GERRIT
 
@@ -760,14 +760,14 @@
     artifact = "com.google.gitiles:blame-cache:" + GITILES_VERS,
     attach_source = False,
     repository = GITILES_REPO,
-    sha1 = "d0bcfc6292b8d69a76156baa620ac892f68a5d23",
+    sha1 = "d1d62c9905b0cc9e066d337b33480599f430eb87",
 )
 
 maven_jar(
     name = "gitiles-servlet",
     artifact = "com.google.gitiles:gitiles-servlet:" + GITILES_VERS,
     repository = GITILES_REPO,
-    sha1 = "7c010f892c346fe3278df15f73b1588a110f0187",
+    sha1 = "7360cb90576a813cd1288cf853c59824fe92467e",
 )
 
 # prettify must match the version used in Gitiles