Submitting proposal for Building Modern Web Apps with Brunch

https://github.com/cascadiajs/2014.cascadiajs.com/tree/master/proposals
Updating artifact links for Building Modern Web Apps with Brunch
Addng related article on Building Modern Web Apps with Brunch
Updating abstract for Building Modern Web Apps with Brunch
Adding additional code sample for Building Modern Web Apps with Brunch
Merge pull request #36 from jhabdas/master

Proposal for Building Modern Web Apps with Brunch