rflow.gemspec in rflow-1.0.0a3 vs rflow.gemspec in rflow-1.0.0a4

@@ -19,9 +19,10 @@
   s.test_files    = s.files.grep(%r{^(test|spec|features)/})
   s.require_paths = ["lib"]
 
   s.add_dependency "uuidtools", "~> 2.1"
   s.add_dependency "log4r", "~> 1.1"
+  s.add_dependency "sys-filesystem", "~> 1.1.2"
 
   s.add_dependency "sqlite3", "~> 1.3"
   s.add_dependency "activerecord", "~> 3.2"
 
   s.add_dependency "avro", "~> 1.7.5"