Adding search admin form
Getting recommended campaigns on the page
adding page template for search results
Removes `cancel-us-users` drush task.

Fixes #3524.
Merge pull request #3539 from sergii-tkachenko/cleanup-us-users-remove-code

Removes `cancel-us-users` drush task.
Canada: process custom HTTP response errors.

Fixes #3480.
Merge pull request #3543 from sergii-tkachenko/canada-paste-expected-errors

Canada: process custom HTTP response errors.
preprocessing search page
Merge branch 'dev' into search-no-results
Code clean up
DRY refactor of recommended campgians gallery code
Adding update hook
Fixes update hook
Merge pull request #3544 from sbsmith86/search-no-results

Theming the search page when no results found.