Fix example

Fix selector in backbone-validation-bootstrap.js
Use src/backbone-validation.js instead of an outdated copy
Use Backbone 1.0
Upgrade to jQuery 1.8.3 since Jquery > 1.7 is required by Backbone 1.0
Rename files to use - instead of . as separator

Please check tests are fine with jQuery 1.8.3, I can't manage to make grunt work under Windows (Job computer, not my choice ;-)