package is overly restrictive about installation environment

[sam-github]

https://github.com/karma-runner/karma-cli/blob/master/package.json#L45-L51

karma is perfectly suited to be used as a dev-dependency for unit testing, but preferring global causes npm installs to warn.

karma works fine on stable node versions, not just the legacy 0.8/0.10, despite the npm warning about engine unsupported, I suggest removing the engine spec, or at least allowing >= 0.8.

[matanox]

I second this. What about node version 4? doesn't karma-cli's own test suite cater for a quick verification of that version as well?

[dignifiedquire]

Yes this should be updated to the same versions as karma itself supports