- Enable PDF documentation. Based on [1].
- Enable table of contents generation for pdf
- Removed literalinclude of designate.conf [2]
- Removed illegal character (a literal ESC)
- Fix incorrect column count in backends summary section
- Replace nodes.line() with nodes.paragraph()
[1] https://review.opendev.org/601659
[2] https://github.com/sphinx-doc/sphinx/issues/3099
Change-Id: Ie454f8f9ebc8e36347ce33b22f2e6da0257fe4e0
Signed-off-by: Nicolas Bock <nicolas.bock@suse.com>