Bump standard-minifier-css package version to republish.

Since all Meteor packages implicitly depend on the meteor package, it
appears packages that register compiler plugins may need to be republished
in order to benefit from f34c5ec926, or else
the `Cannot find module "fibers\\future"` error may occur on Windows.

packages/standard-minifier-css/package.js

@@ -1,6 +1,6 @@
 Package.describe({
   name: 'standard-minifier-css',
-  version: '1.3.4',
+  version: '1.3.5',
   summary: 'Standard css minifier used with Meteor apps by default.',
   documentation: 'README.md'
 });