Added assert.notOk()

[Bartvds]

Of course we currently could do assert.ok(!actual) but that's breaking the descriptive symmetry of the negations compared with the other assertions.

I also added tests but it looks like the documentation is in the other repos. I can edit that as well after you accept this edit.

This would close #165

[Bartvds]

I ran node's mocha which passes the tests but I see travis balks on the browser tests. I'm on windows so I cannot run make to verify this (no grunt love here? :).

[logicalparadox]

The code looks like it should work, but please fix your formatting to match the style guidelines. Mocha-phantomjs hasn't been behaving as of late so I will see what I can do about that.

The API documentation is automatically generated from the comment block you have already included so the website will be updated when I release. No need to edit the chai-docs repo unless there is something specific you want to include in a tutorial.

[Bartvds]

I should've spotted that in the diff, as I had my editor mis-configured. I pushed a fix.

Maybe travis fails because I don't commit any build output files? I was looking into setting up VirtualBox so I can make() stuff but I had to navigate some roadblocks so that'll take a bit longer.

[logicalparadox]

Actually travis/make is configured to handle all the build output files itself and you should NOT be committing them in PRs. I think mocha or mocha-phantomjs is having issues... we had to downgrade our mocha recently due to incompatibility but perhaps it has resurfaced. I will look into it further.

[logicalparadox]

Released with 1.7.0. View the release notes.