keithnorm/Backbone-Extensions — pull request #2 by bartvandendriessche (2012-02-12 10:46:23+00:00)
Title: Allow query parameters to contain an array such as ?q=value1&q=value2

The query parameters above will be stored in the params object as:

params.q -> [value1, value2]

If the parameter key occurs only once, behaviour is unaltered,
otherwise, the param object's value for the parameter key is turned
into an array and subsequent values are pushed onto it.