Summary:
Fixes T2605.
- Add a setup warning about the stopword file.
- Provide a simpler stopword file.
Test Plan:
- Hit setup warning.
- Resolved it according to instructions.
- Added "various" to a task, then searched for it, found the task.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T2605
Differential Revision: https://secure.phabricator.com/D10258
