bash/aliases: add fc-fontformat, mkmaildir
bash/aliases: open(): insert `uri` filter before xdg-open
bash/aliases: use some creative parameter expansion
Revert "bash/aliases: open(): insert `uri` filter before xdg-open"

Done by wrapping xdg-open instead, it's betterer because it also applies
to web browsers and the like.

This reverts commit 0794350a0f9dfc3f09fa2fdc959a72cdf468d26c.
ssh/hosts: moose
ssh/hosts: delete old IPs for moose
ssh/hosts: delete never used DSA keys