There are a number of other built-in aliases I would like to see (for parity with the example aliases):

* `xdescribe` (shortcut for making an example group pending, like `xit`)
* `xcontext` (same)
* `fdescribe` (shortcut for focusing on an example group, like `fit`)
* `fcontext` (same)

I'm not sure I want to add `fexample_group` and `xexample_group`, though.