Add scripts to build with buck in future

To verification, build with build by script.

But now available on master only, So prepare for future.
diff --git a/.gitignore b/.gitignore
index 4bea7e4..72396be 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@
 /pom.xml.*
 /release.properties
 /gerrit
+/buck
diff --git a/.travis.yml.next b/.travis.yml.next
new file mode 100644
index 0000000..7a60883
--- /dev/null
+++ b/.travis.yml.next
@@ -0,0 +1,14 @@
+language: java
+jdk:
+  - oraclejdk7
+  - openjdk7
+env:
+  matrix:
+    - API_VERSION=2.8
+    - API_VERSION=2.8.1
+
+before_build: ./script/before_build.sh
+
+script:
+  - mvn package -DGerrit-ApiVersion=$API_VERSION
+  - ./script/build.sh $API_VERSION
diff --git a/README.md b/README.md
index 2b259dd..29aee04 100644
--- a/README.md
+++ b/README.md
@@ -61,12 +61,14 @@
 
     mvn package -DGerrit-ApiVersion=2.8
 
-* for `buck`
+* For `buck`
 
 After clone gerrit, you can checkout specified version.
 
     git checkout -b v2.8 refs/tags/v2.8
 
+*NOTE*: Now available on master only.
+
 Reference
 ---------------------
 
diff --git a/script/before_build.sh b/script/before_build.sh
new file mode 100755
index 0000000..79bd995
--- /dev/null
+++ b/script/before_build.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+# Gerrit
+git clone https://gerrit.googlesource.com/gerrit
+
+# Buck
+git clone https://gerrit.googlesource.com/buck
+cd buck
+ant
+cd ..
diff --git a/script/build.sh b/script/build.sh
new file mode 100755
index 0000000..14eab15
--- /dev/null
+++ b/script/build.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+ROOT=${PWD}
+VERSION=$1
+
+# Checkout tag
+#cd gerrit
+#git checkout -b v${VERSION} refs/tags/v${VERSION}
+#cd ..
+
+# Add Symbolic link
+#ln -fns ${ROOT} gerrit/plugins/rabbitmq
+
+# Build
+cd gerrit
+${ROOT}/buck/bin/buck build plugins/rabbitmq:rabbitmq