doc: add interface status command POD header.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
dabba: fix typo promiscous -> promiscuous.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
doc: convert missing POD headers to manpages.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
cmake: refactor pod2man target generation.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
doc: add generic options in POD headers.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
dabba: do not allow empty rpc server name.

protobuf does not throw an error when binding to a socket with an empty
server name.
Therefore we need to catch it early and return EINVAL.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
doc: remove obsolete interface POD header section.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
dabba: remove obsolete enum.

Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>