Close ticket sales

• Close ticket sales
• Add Travis as sponsor
• Focus on schedule

More service worker stuff, talks timing update

3.4.0

Update talks page (#77)

⚡️ Service worker, performance improvements, close diversity scholarship

A number of performance improvement PRs, added service worker, closed diversity scholarships

Performance improvements &c

3.2.0

Fix manifest problems. `src` -> `href` 🙈 (#55)

Remove font-awesome

3.1.3

Remove font-awesome. Replace mobile nav link with an SVG. (#44)

Fix to map URL

3.1.2

Merge branch 'master' of https://github.com/nzruby/conf

🏎 Performance improvements

#40 - remove unused fonts
#42 - replace Google Maps plugin with static image

🎉 Side events & talk schedule

#35 - side events
#34 - talk schedule
#32 - re-formatting images and misc CSS fixes - thanks @ndorfin

Also some misc updates since 3.0.0

🎟❗️ Ticket sales open

Launch diversity scholarship
Some changes to nav
Include ticket links

Typography tidying

#22 - new font