use bower

- bower init
- load jquery 1.7.2 dependency using bower
add jquery 1.4.4 test coverage
add generate-id to bower dependencies
add html5.constraintValidationAPI to bower dependencies
add travis config
add grunt-cli to travis

ensure travis installs grunt to run tests
remove jquery.scrollTo plugin (fixes #34)

use jquery API .scrollTop() instead
Merge pull request #38 from bboyle/cleanup

add bower and travis config