improve perfomance backbone.routefilter.js

- Improve Performance with native bind ( see below links- jsperf )
- For supporting ie7,8,9 use this https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind

Underscore v1.3.3 | http://jsperf.com/bind-vs-jquery-proxy/65
Underscore v1.6.0 | http://jsperf.com/bind-vs-jquery-proxy/66