Fixed Css.encoding getter.
Fixed Css.encoding getter.

papandreou/assetgraph,jscinoz/assetgraph,papandreou/assetgraph,jscinoz/assetgraph,jscinoz/assetgraph,assetgraph/assetgraph,slang800/assetgraph,papandreou/assetgraph,slang800/assetgraph