The most common thing that we do with fab! is:
fab!(:thing) { Fabricate(:thing) }
This commit adds a shorthand for this which is just simply:
fab!(:thing)
i.e. If you omit the block, then, by default, you'll get a `Fabricate`d object using the fabricator of the same name.
* DEV: Implement staff logs for user columns edits
* deleted extra space in staff logger detail string, deleted string when no changes are made, added basic test coverage for EditDirectoryColumnsController
* fixed change made to #self.staff_actions un UserHistory
* implemented a method that builds the details, previous_values and new_values in a dynamic way
* removed details of changes
* refactored small merge
