No mechanical changes come of this change, only the ability to have an antagonist faction, as well as having specified visbility for the affiliation itself.
Also adds Skrell home system to the home system list.
Makes the name of the starsystem and station generic such that it can be modified in global.dm and replace the strings where it is used. This won't have an effect on Polaris itself, but makes changing the name much more simple for forks. Using string concat constants on the advice of Psi.
