.gitignore in serial-spec-0.2.0 vs .gitignore in serial-spec-0.2.1

@@ -1,9 +1,11 @@
 /.bundle/
 /.yardoc
 /Gemfile.lock
+/gemfiles/*.lock
 /_yardoc/
 /coverage/
 /doc/
 /pkg/
 /spec/reports/
 /tmp/
+.ruby-version