Adding "bindingComputeds" to view for generating computed view properties.
Revised documentation.
bindingComputeds now can be a function, and computed objects can be non-functions
Merge pull request #9 from salsify/edge

Enhanced computed view property capabilities.
Renaming "bindingComputeds" to "computeds", adding simple two-way binding support.
Configuring Epoxy model as a mixin library.
Removing "Observable" model features, introducing sanctioned "viewModel" role for organizing stateful view data.
Revised docs, tutorials, readme, and version.
Adding computed view getters/setters.
Polishing computed view methodologies, adding csv/integer/decimal filters. New docs.
Bug fix to setBinding method, expanded documentation.
Revised computed model implementation with manually-declared dependencies injected into getters.
Revised documentation for Epoxy Model dependency mapping.
New computed property test cases.
New test cases to verify constructor options.
Formalizing mixin API, adding supporting docs.
Adding IOC usage of mixin method.
New Epoxy mixin test cases.
Revised readme.