Add Bower instalation instructions to readme
Add link to Dart port
Update README.md
Add throttling based on underscore’s implementation + tests.

also fixed http-proxy version to 0.10.4 to avoid trouble with testacular.
Merge pull request #52 from neoeno/scroll-throttling

Adds throttling based on underscore’s implementation + tests
Merge branch 'master' of github.com:sroze/ngInfiniteScroll

Conflicts:
	build/ng-infinite-scroll.js
	build/ng-infinite-scroll.min.js
	src/infinite-scroll.coffee