Refactoring contexts (WIP)
Add pending 'adding skills' to feature spec 'editing_a_person'
Refactoring contexts (WIP)
Refactoring contexts (WIP)

* Implementat basic expose_list in TaggingAnEntry
Add skills to the person's page

* adds the skills list to the page
* adds a placeholder for skills form
* updates accordingly the partials from TaggingAnEntry context
Refactoring contexts: finishing touches - all specs pass
Split context TaggingAnEntry to CreatingTaggings and ViewingTaggings
Remove unused file 'shared_examples_for_list_providers'
Git ignore doc/