Make hint-helper configurable

Change-Id: I7576557c4d10a007c6fe388159ab6c2c31256dba
diff --git a/.gitignore b/.gitignore
index 219d538..87ea481 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,6 +9,7 @@
 cache/data
 public
 kalamar.*.conf
+kalamar.conf.json
 script/hypnotoad.pid
 .sass-cache
 dev/css