AJAX request now working for iteration 1.
Merge remote-tracking branch 'origin/mchau' into Yung'sBranch

Conflicts:
	app/assets/javascripts/projects.js
	app/controllers/pledges_controller.rb
	app/controllers/projects_controller.rb
	app/views/pledges/create.js.erb
	app/views/projects/_individual_project.html.erb
	app/views/projects/show.html.erb
	app/views/projects/show.js.erb