Remove deprecation warning at startup

[MRigal]

Fixes #42

[paddycarey]

Thanks for the PR! I'll poke Travis to run the tests and should be able to get this merged later tonight or tomorrow.

[pe224]

Cool! Hope this lands soon.

For me, I also needed to adapt the signature here to

    def __init__(self, fspath, parent):
        super(BlackItem, self).__init__(fspath, parent)

otherwise there was an error.

[MRigal]

Thanks @pe224 it was indeed missing! I hope it still works fine with all older versions also, but I can't see or start the Travis jobs... @paddycarey maybe?

[paddycarey]

Sorry for the delay, this looks good to me but just having a little trouble with the travis build and required statuses. I can see that it's passed the build fine, but hasn't come through here for some reason.

I'm no longer working at shopkeep so don't have admin access to this repo to just disable the status check and merge, but I've reached out to some folks who do, so should be able to merge soon hopefully.

[MRigal]

Thanks @paddycarey ! For all folks from Shopkeep:

Thanks for the nice work so far! In case maintenance of the project might become to heavy, you could consider transferring the plugin to the https://github.com/pytest-dev organization (keeping credits for the original work and/or adding some contributers as maintainers of this repo).

[paddycarey]

PR's been merged, i'll get the new version out shortly, thanks!