.gitignore in conversejs-3.3.5 vs .gitignore in conversejs-3.3.6

@@ -1,13 +1,15 @@
 /.bundle/
 /.yardoc
 /_yardoc/
 /coverage/
+/doc/api/
 /pkg/
 /spec/reports/
 /tmp/
 /spec/dummy/tmp
 /spec/dummy/log
+/vendor/
 /gemfiles/vendor/
 /Gemfile.lock
 *.gemfile.lock
 
 # rspec failure tracking