solnic/virtus — pull request #100 by emmanuel (2012-07-01 10:57:23+00:00)
Title: Replace AttributesAccessor with AttributeSet.

This way the methods for accessing a set of Attributes are together with those Attributes. The down side is that AttributeSet is marginally more complex. The upside is that `Virtus::Extensions` and `Virtus::ClassMethods` are simpler and more direct.