Update package.json npm install fail

Fix error :
npm ERR! peerinvalid The package karma-requirejs does not satisfy its siblings' peerDependencies requirements!
npm ERR! peerinvalid Peer karma@0.10.10 wants karma-requirejs@~0.2.0

On npm install
Merge pull request #15 from Eric-D/patch-1

Update package.json npm install fail