Updated to the latest Backbone version 1.1.0.

This update removes dependencies on the private method `_configure`.
Instead we override the `Backbone.View` completely.  This isn't ideal,
but it's the "Backbone-way".
Update version's in package manager configs.
Merge pull request #397 from tbranyen/update-to-latest

Updated to the latest Backbone version 1.1.0.