.epub is generated using dbtoepub which is still considered alpha
software apparently and installed in a non-standard place. for now,
use the docbook stylesheet location to find it. .mobi is generated
using kindlegen from the .epub in order to have a real toc.
there is some preprocessing with a custom stylesheet to make
things "look right". see mobi-fixup.xsl.in
Change-Id: Ice92e701e2f921e70c0f98683b5e9ab44a347e3b
Reviewed-on: http://gerrit.openafs.org/4887
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@dementia.org>