Tag aliases: *_grunt -> team_*_grunt

create alias rocket_grunt -> team_rocket_grunt
create alias aqua_grunt -> team_aqua_grunt
create alias magma_grunt -> team_magma_grunt
create alias galactic_grunt -> team_galactic_grunt
create alias plasma_grunt -> team_plasma_grunt

Reason:

I've seen some posts tagged without the "team" part. I've already fixed them all, but it wouldn't hurt to have these aliases.

Also, they are shorter ways of saying the same thing, naturally.

Done