Release 1.6.0beta25.
Release 1.6.0beta25.

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