Update package.json

[phillipdodd]

Description

Updated the version numbers of dependencies.

Tested new versions of dependencies in package.json using npm update.
I've still got a lot to learn, so please don't hesitate to point out anything that I may have done wrong about the pull request process.

Thanks!

Checklist

• [ x ] Code compiles correctly
• [ na] Created tests which fail without the change (if possible)
• [ na ] All tests passing
• [ na ] Extended the README / documentation, if necessary
• [ na ] Added myself / the copyright holder to the AUTHORS file

[coveralls]

Coverage remained the same at 96.199% when pulling 723a3cb on phillipdodd:master into 925efe6 on lapwinglabs:master.