[Libguestfs] [PATCH v7 0/6] v2v: Add -o rhv-upload output mode (RHBZ#1557273).

v6 was here: https://www.redhat.com/archives/libguestfs/2018-March/msg00126.html This makes a number of significant changes: - Input and output options now use a uniform set of -io and -oo parameters. - For -o rhv-upload, we use ‘-oo rhv-cafile=/tmp/ca.pem’ etc. The ‘--rhv*’ options have been dropped. - Rearranges the documentation. - As before includes (untested) support for zero, trim and flush, and falls back to emulating these with current imageio. - Includes suggested changes from Nir Soffer. Rich.