Marry atom-rspec with atom-rspec-focus to support running specific specs?

[lukasnagl]

I currently use traviskroberts/atom-rspec-focus to mark specific specs I’d like to run with the tag focus. Regular execution would then be rspec spec/ --tag focus.

In general, it would be nice if this project supported a way of only executing specs of a certain tag. Merging atom-rspec-focus into this project combined with a new keyboard shortcut to only execute the specs marked with the tag focus seems like a possible way to do it.