upgrading package: sass 3.4.13 -> 3.4.18

sass/sass.spec

@@ -31,8 +31,8 @@ Distribution: OpenPKG Community
 Class:        EVAL
 Group:        Web
 License:      MIT
-Version:      3.4.13
-Release:      20150405
+Version:      3.4.18
+Release:      20150828
 
 #   list of sources
 Source0:      https://github.com/sass/sass/archive/%{version}.tar.gz