Sponge: No way to retrieve auth mode & MC version

[Hidendra]

as of SpongeAPI 1.0. According to g on IRC Sponge plans to add a Server-style interface. I assume it will contain access to auth mode & MC version.

• Auth mode
• MC version (SpongeAPI 2.1)

[Ribesg]

Auth mode: https://github.com/SpongePowered/SpongeAPI/blob/master/src/main/java/org/spongepowered/api/Server.java#L265

MC Version:
https://github.com/SpongePowered/SpongeAPI/blob/master/src/main/java/org/spongepowered/api/Platform.java#L70

[Hidendra]

Sweet. Looks like a bit changed re: config files so I'll test it a bit more before I push.

[jb-aero]

Added in #75

[MattBDev]

Bump