OPS: WebSearch: enables webservices

* This reverts commit 34475d46d973178a5e1fa5a74bfb3916fd76a044.
* This reverts commit b88d022ca2d234ce342ff355d750d60d7b0bba01.
* This reverts commit 9d85facdd1fc7266aff1612ede5e270c6c1b24c6.

Signed-off-by: Federico Poli <federico.poli@cern.ch>
WebSearch: kwalitee fix

* Runs `autopep8` on `websearch_services_regression_tests.py`

Signed-off-by: Federico Poli <federico.poli@cern.ch>
WebSearch: service JournalHintService

* Adds the search service JournalHint, that displays 'Were you
  looking for a journal reference? Try: <link>' when the user
  search for a raw journal reference.

* Adds regression tests to WebSearchServicesJournalHintService.

Signed-off-by: Federico Poli <federico.poli@cern.ch>
Merge pull request #37 from fpoli/prod-websearch-journal-hint-service

WebSearch: service JournalHintService