Both locations and organizations shown in search autocomplete
Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1122828
Description of problem:
The search autocompletion on the organisation and location list pages shows both orgs & locs no matter which page you're on.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. View the organisations page
2. Type "name = " into search
Lists both locations and organisations
Vice-versa on locations page.
Fixes #6763 - Correctly choose autocomplete search scope for taxonomies depenant on controller