Search: Allow web search syntax when searching notes

[kevinrobinson]

Who is this PR for?

educators

What does this PR do?

Supports typical search syntax like +/- and quoted phrases.

Checklists

Which features or pages does this PR touch?

• Search notes

Does this PR use tests to help verify we can deploy these changes quickly and confidently?

• Manual testing made more sense here

[kevinrobinson]

Also bundles some patches in response to low-risk advisories (see https://travis-ci.org/studentinsights/studentinsights/jobs/559507348), and a bunch of different workarounds for Travis to upgrade Postgres.

[kevinrobinson]

FWIW, upgrading Postgres with Homebrew:

$ brew upgrade postgresql@11

Next, I quit Postgres using the little elephant menu in the task bar at the top of the screen.

After, I also followed the helpful Homebrew instructions about how to migrate existing databases:

$ brew services start postgresql

And rebuilt the local databases anyway:

$ bin/rails db:environment:set db:drop db:create db:migrate db:seed RAILS_ENV=development

Then ran a test to verify it worked:

$  bundle exec rspec spec/lib/search_notes_queries_spec.rb