Aliasing shadowsquirrel -> karol_pawlinski

Reason: Same artist.

I was just about to post this, as I just got done updating the artist source. But do we alias to real names, or to the artist's web name?

According to the tag help section:

When adding a new artist tag, attempt to use an alias instead of the artist's real name. If they go by their real name with everything else, then use their real name.

Well he signs all of his work with karol pawlinski so yeah...

DONE AND DUSTED.