Add default plugins to instance

Change-Id: I39ababb7e5d6b266a2ae4868811181816202cd48
diff --git a/.gitignore b/.gitignore
index 76e80a9..8076803 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,6 +32,7 @@
 *.log
 *.db
 *.plugins.json
+!default.plugins.json
 *.old
 .*
 /t/kalamar_user_client.t