Update package.json

Packages not updated:

jade (Breaking changes in 0.31.0, see visionmedia/jade#1094)
gm (Changes look harmless, but I'm not using this so couldn't test)
knox (Changes look harmless, but I'm not using this so couldn't test)
Rename array.js to array
Merge pull request #17 from DieBuche/patch-4

Update package.json