Add manual page for aquarela(8). Rewritten entirely from rejected part of patch found at /n/sources/patch/applied/aquarela-man/aquarela.man. Checked accuracy against distributed aquarela binary operation and c source. I have used ``quotes'' to designate the foreign words ``share,'' ``primary domain,'' and ``master browser'' at the first appearance of each. Changed usage() in aquarela.c to match SYNOPSIS and be ordered in the standard way.