Use an SVG badge.

An SVG badge looks better on Retina screens and when zoomed in.
Merge pull request #143 from espadrine/patch-1

Use an SVG badge.
removed double import, causes confusion
Merge pull request #179 from gillesdemey/feature-removed-import

removed double import, causes confusion
Update README.md
Removed the hyphen from the projects name.

Also updated the Gruntfile.js to load the projects name from the
package.json file instead of hard coding it.