Reflowed the scripts (mostly) according to vim's autoindent engine.
Also added vim modelines so that people who are familiar with them can
configure their environment for A2SERVER's conventions. Also removed
trailing whitespace from lines and files while I was at it to make git
happier about various things.
An unusual quirk of git is that it tends not to like trailing whitespace
at the end of lines, and trailing blank lines at the end of a file. It
messes with the word diffs a bit I think. Anyway, it's easily removed,
so I've removed it.
