Osra197 show view on cancel edit

Feature specs and controller changes to get cancelling edit returning to show page for partner, orphan and sponsor.
There is no need for redundancy, however. If we are not sure that 
```ruby
Given I am on the "Show Partner" page for partner "Partner1"
And I click the "Edit Partner" button
Then I should be on the "Edit Partner" page for partner "Partner1"
```
produces the same outcome as
```ruby
Given I am on the "Edit Partner" page for partner "Partner1"
```
or if we believe that setting the same fields on the same Edit form needs to be tested multiple times across different scenarios for full confidence, something is wrong.