Added messaging support for __jail type

prints start/stop/create/delete/onboot to $__messages_out
Updated man page

Included MESSAGES section
ensure all files we create end with a single newline

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
Bugfix to auto import pgp keys for new repos, so we can add repos with new keys
bugfix the list of interfaces
english
fix asciidoc
asciidoc syntax fix
whitespace
wording
wording
typo
wording
clarify docu
expand "Dependencies" paragraph
crosslink html man pages

This is using sed --in-place, which might not be available in
all sed versions. If that's a concern, then please replace with
awk script or move to build-helper and use temporary files.

Also the regex is a heuristic. It works for our man pages here
but it might have false positive matches in the future.
wording
fix error
fix sed pattern

* don't add a href to the title tag (3rd line in the html document)
* replace multiple instances on a line
Merge pull request #335 from tpo/master

trivial docu fixes