Merge branch 'master' of https://github.com/cmaurer/angularjs-nvd3-directives into watch-refactor

Conflicts:
	src/directives/nvd3Directives.js
Merge branch 'master' of https://github.com/cmaurer/angularjs-nvd3-directives

Conflicts:
	dist/angularjs-nvd3-directives.js
	dist/angularjs-nvd3-directives.min.js