Ignore files created by local persistence feature

Change-Id: I02ec8e22707cf42569fdba51e1dc82bca627fe9d
diff --git a/.gitignore b/.gitignore
index e0f788a..7dc379f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,6 +12,8 @@
 dependency-reduced-pom.xml
 .idea
 *.DS_Store
+localDB
+localDB.*
 
 core/store/trivial/data/
 core/store/apps