Update package.json (just a little housekeeping)

[petercunha]

I've done a little housekeeping on the package.json file. Here's what I've changed:

• Add repository information (So npm install doesn't throw a warning)
• Add GPL license information (So npm install doesn't throw a warning)
• Update all dependencies (Better speed and stability + less npm install warnings)

It's always good to keep the package file up to date, but I know you guys are busy working on the bigger stuff, so I took care of it for you 😄

Thanks for your consideration,
Peter

[weblancaster]

Thanks a lot @petercunha :)