Backend restarts are now return(retry).

Fixes:	#1503

Submitted by:	Gauthier Delacroix via github

the object instantiation until needed.

sphinx-build v0.6.6 which is on RHEL6/CentOS6 does not know about -n,
so we'll have to do without it for now.

Reported in:	#1535

header being a HTTP/1.x thing only.

Move the handling accordingly

it, no matter what.

order to bottom up, so that header modifications happen in the
sensible order.

This reflects the debian build files, editline will suffice.

We only need debhelper when building the debian packages,
and the systemd-units is within a conditional that awk ignores.

Updated the commands to not include these in the future, and also
the Redhat spec file so it should work on a fresh installation.

Noticed by:	fgs

The list of documented build requirement have not been updated
for a while, and was outdated.

Update the lists with recent data.

Added (commented-out) commands that extracts and formats
this information directly from the packaging files.

Reported by:	frakt

and put the V1F VFPs after all the gzip/esi etc. have been pushed.