In-game calendar for events sign-up.

[Guevara]

It's not really his idea. WoW has had this for years. FFXIV should've had this from the start.

While we're at it;
- DoT timers
- Functional raid/party UI
- Functional map
- Scalable UI
- In-game damage/healing meters
- Fix combat log to track everything
- Show latency in castbars
- Fix the castingbar on top of focused target
- Allow binds for mw up and down
- Fix tab targeting.

Well I meant great idea sking for it =)