Add ability to ignore tests.

[nweber]

Add the 'inverse' of the "only" option; the ability to ignore tests by name.

[netmilk]

Hey @nweber,

Thanks for the contribution! I'd prefer to call this functionality skip to be consistent in naming with the rest of the project.

[nweber]

Makes sense. I'll make that change.. I'll also check out the tests; I'm not sure why they're failing. I'll take another shot at running them locally to see what's up. I'll update the pull request when it's sorted out.

[nweber]

Adjusted naming.
Fixed the failing tests.
I have not added new unit tests yet.

[michalholasek]

I'm very sorry we were not able to get back to this. I need to close this as we're going to work on #705 first, which requires having no pending Pull Requests. Having said that, we plan to revamp whole CLI layer (along with transaction names / paths) in the future, so it is possible we will consider adding --skip functionality aswell.

Thank you for all the work you've put into this!

[michalholasek]

Tracking issue.