Adding files for Backbone 1.0.0 externs.
Deleting an events test for Backbone 1.0.0 that CC doesn't like.
CC complains about use of a reserved word for this test.
Removing redefining of Location in router test that CC doesn't like.
Adding Backbone.Collection.syncArgs property
Updating Backbone.Collection#where and adding #findWhere.
Adding Backbone.Collection.previousModels property.
Updating type signature for Backbone.Collection#reset.
Can be passed a single model object.
Adding extern for Backbone.Collection#set
Adding externs for new Model methods that proxy to Underscore.
Adding externs for `listenToOnce`
Updating constructor type signature for Backbone.Model
Deleting a router test that redefines Backbone.History#navigate.
This overwrites our extern for this method, causes false positives when
testing externs.
Note in README about externs for 1.0.0
Updating Backbone.Model constructor type signature.
Should be able to take model attributes and options as parameters.