*Remove internal GameSpeed defaults
Enforce setting values explicitly all the time
Require definition of a DefaultSpeed
*Remove Global.Timestep default
*Remove the hacky Timestep/OrderLatency setting via LobbyInfo
*Fix shellmaps ignoring mod-defined gamespeeds
*Make DateTimeGlobal use the MapOptions gamespeed
- Typo in documentation ("proximitry").
- Add spaces between sentences.
- Remove most occurrences of " " (two spaces) unless clearly used as indendation
- Punctuation (although no fullstop after filenames like "notifications.yaml").