support form submissions via jQuery
[#70417490] add links to the terms of service and privacy policy
Update lib/change_petition

Require an integer as a petition_id
Update stubs to use allow() syntax
remove app/assets/javascripts/vendor
[#70417556] add support for signature count

* routes
* controller
* count polling via javascript
broke up applications.js into files
Merge branch 'jquery'

Conflicts:
	app/assets/javascripts/application.js