Bump Gitblit to 1.9.0-SNAPSHOT

Gitblit master is now heading to 1.9.0 snapshot

Change-Id: If256410797ed58fde2a6d3322c452ac61898e47d

README.md

diff --git a/README.md b/README.md
index 42156ef..a88175a 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,8 @@
 using the installMaven ANT target.
 
     $ git clone https://github.com/gitblit/gitblit.git
-    $ git checkout develop
+    $ cd gitblit && git checkout master
+    $ git fetch origin refs/pull/1168/head && git merge --no-edit FETCH_HEAD
     $ ant -DresourceFolderPrefix=static installMaven
 
 ### Gitblit plugin
@@ -80,4 +81,3 @@
 "Search" submenu title (makes only sense to set if some projects are indexed in GitBlit; single dash unsets) [Search]:
 "Browse" submenu title for the "Projects" top-level menu [Browse]:
 ```
-

external_plugin_deps.bzl

diff --git a/external_plugin_deps.bzl b/external_plugin_deps.bzl
index a4ad0e6..e9398c9 100644
--- a/external_plugin_deps.bzl
+++ b/external_plugin_deps.bzl
@@ -11,7 +11,7 @@
 
   maven_jar(
     name = 'gitblit_jar',
-    artifact = 'com.gitblit:gitblit:1.8.1-SNAPSHOT',
+    artifact = 'com.gitblit:gitblit:1.9.0-SNAPSHOT',
     repository = MAVEN_LOCAL,
   )