Release 1.6.0beta7.
Release 1.6.0beta7.

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