Edit airline details + CEO name

[Unknown98]

You can now edit your airline's IATA code, callsign, and specify a CEO name. This is all in the edit airline page, previously the "change airline name" page. You can change your IATA code, callsign, and CEO name as many times as you want without penalty but changing your airline name will still cost money & reputation. I also changed the formula for that a bit so it is more expensive to change your name. You now get a reputation penalty regardless of your current reputation, currently you could change your name and if you were under 50% reputation it would not penalize you any rep points - not sure why I made it that way initially, but regardless it is changed now to give a rep penalty regardless of your current reputation.

Thanks to Dokhu for the CEO name idea