patchbomb: add linebreaks after colons (coding style)

Fixed XHTML validation errors

Move aliases section in help below synopsis (issue362) This should avoid confusion why e.g. "hg help co" shows help for "hg update" instead.

test-convert-svn-source: test stop revision

Sort commands table again and add some missing 'hg' in synopsises.

Obfuscate (instead of just escape) contact/owner in gitweb summary. This could contain an email address.

Don't let ui.username override web.contact (issue900) 4603eef60237 introduced using ui.username before web.contact, but this was never documented and might cause commit accidents. - Drop web.author (deprecated since 2005) - Try ui.username or $EMAIL as a fallback to display something useful. - Update docs for the fallbacks.