Adds the Super Gravitational Singularity, a special final form that is achieved when the singularity consumes supermatter.
Has a far large pull range, and emits SM waves that instantly vaporize nearby mobs. (Second attempt after merge errors.)
Update changelog.
Fixed oversight in expand() & tweaks things.

Fixes removal of Size 7, flavor text a little better, and upgrades other events.
unfuck my syntax error

I FORGOT TO ADD A "
fixed ternary conditional

i swear to god i actually am retarded
Fixes name/desc and check_turfs_in() issues

There we go.
Merge pull request #1950 from VelardAmakar/Bleeding-Edge

Super Gravitational Singularity