Padded all chapter numbers to 3 digits

So they appear sequentially in all purely lexicographically sorted lists
Removed extraneous HTML chrome junk from top and bottom
Removed presentational attributes from <hr> tags
Added linebreaks after every block-level element, plus some other fixes
Converted faux dashes to em-dashes

Ahhhhh, typography. My #1 pet peeve about the original text is the use
of hyphens where em-dashes belong. We can fuss over whether they should
be em-dashes or en-dashes, but I'm right and you're wrong, so what's
the use? Besides, the canon novels use em-dashes, so we should be
consistent. Yeah.
Merge branch 'master' of git://github.com/75th/hpmor
chapter title updates