Add dependabot

Change-Id: I2e9535fa8b39ecaf02284a1d26711bbb44d8c25e
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..2bf77ee
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,15 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  - package-ecosystem: "maven" # See documentation for possible values
+    directory: "/"
+    schedule:
+      interval: "daily"
+    ignore:
+      - dependency-name: "org.apache.lucene:lucene-*"
+        versions:
+          - ">= 5.1.0"