.gitignore in tree_clusters-0.1.0 vs .gitignore in tree_clusters-0.2.0

@@ -6,7 +6,16 @@
 /doc/
 /pkg/
 /spec/reports/
 /tmp/
 
+test_files/pola*
+test_files/rnr*
+test_files/OUTPUT*
+test_files/ignore
+
+.DS_Store
+
+.ruby-*
+
 # rspec failure tracking
 .rspec_status