.gitignore in reform-2.3.0.rc2 vs .gitignore in reform-2.3.1

@@ -2,11 +2,10 @@
 *.rbc
 .bundle
 .config
 .yardoc
 Gemfile.lock
-gemfiles/*.lock
 InstalledFiles
 _yardoc
 coverage
 doc/
 lib/bundler/man
@@ -16,5 +15,8 @@
 test/tmp
 test/version_tmp
 tmp
 .rubocop-https*
 .byebug_history
+.idea
+*.iml
+gemfiles/*.gemfile.lock