Updates to lodash 2.2.1

Removes utils because it is now included in lodash

Fixes links specs
Fixes #5 - An array of links doesn't throw an error

the Resource::links method always return an array when given a valid parameter.

The array contains only instances of Link
fix issue with resources without _links property
build branch on travis
remove branch from .travis.yml
Merge branch 'master' of github.com:xcambar/halbert into no_links

Conflicts:
	src/links.js
	test/specs/links_spec.js
build branch once again after merg
remove branch from .travis.yml
express the fixed issue more clearly