Write integration tests

[abraham]

It would be good to define some core features and write browser feature tests to ensure they continue to work.

E.g.

• User views blog post
• User adds session to personal schedule
• User can view speaker details from session page

[ozasadnyy]

• First of all the home page should show up-to-date information about the conference with links to the registration.
• sponsors block
• schedule
• speakers
• blog
• the rest.

[cliveb]

Provide versioning that deletes old browser cached service-workers version (provide a manual 'suicide kill' the user can use to force a new version to load if the native versioning remains troublesome).

Provide an admin form for:

• schedule
• speakers
• team

Make the modular code or built in tests such that removing a section such as blog or ticketing does not trigger exceptions elsewhere in the main page code.

[htchien]

• Easy to use Backend console to let our program volunteers to edit Schedule / Sessions / Speakers / Team info.
• Localization.

[abraham]

From Slack:

Adding speakers, changing the schedule

[abraham]

Puppeteer might be able to support shadowdom now. puppeteer/puppeteer#6509. Otherwise https://github.com/Georgegriff/query-selector-shadow-dom migth work.