chore(grunt): adds load-grunt-tasks module

makes it way more easier to maintain grunt plugin loading
Merge branch 'load-grunt-tasks-support' into load-grunt-tasks

* load-grunt-tasks-support:
  chore(grunt): adds load-grunt-tasks module

Conflicts:
	Gruntfile.js
	package.json
Merge pull request #42 from PascalPrecht/load-grunt-tasks

Load grunt tasks