Timeout, admin password and site id are set in many commands,
and we need to take care of synchronising the descriptions
and flags between them.
This change moves these standard options to cmd.go importing them
in the same manner CommonOpts imported by all commands already.
* support flags commands, move to cmd
* fix target name
* test for happy path importer
* add export cmd
* fix wrong import, lint warns
* increase test timeout
* add sellp to allow main test server to start
* implement all cmds
* handle backup/restore errors
* fix import status check, hide secret from logs
* backup cmd err tests
* randimize test port
* avoid dup code in Last controller
* add target to make all bin archives
* remove container in make
* add smiple scripts to simplify commands, update readme
* add docs on dockerless, enforce app user
* add restore info
* move last to lastCommentsScope const
Dmitry VerkhoturovandUmputun
