Bugfixes dw

Fix for DLTP-9 and partial work on DLTP-51 (format white space and add links to text on abstract text on show page).
@danthewolfe I'm confused about what the above code is doing? Too many "&&"s.

How about:

```ruby
def store_location
  return true unless request.get?
  return true unless request.xhr?
  return true unless request.path =~ /\A\/users\//
  session[:previous_url] = request.fullpath
end
```