Orphan ordering, filtering OSRA178,213-216

inclusive of:
OSRA178
OSRA213
OSRA214
OSRA215
OSRA216
I would fight activeadmins tendency to lose clarity here.
I would create extract the two views out into their own methods and also the check for prams into a method. Then we can have something along the lines of 
```
if creating_sponsorship_link?
  orphan_index_for_sponshorship_link
else
  orphan_index
end

def creating_sponsorship_link?
  !!new_sponsorship[params]
end

def orphan_index
  ...
end

def orphan_index_for_sponsorship_link
  ...
end
```