To be used as the --exec-on-unpack option to rhizome_mirrord
Rsyncs all the unpacked zip files to the Serval Maps testing server and fetches
the Serval Maps re-scan URL
Is invoked with arg1 = path of unpack directory, args2..N = names of newly
unpacked directories within arg1
If the RHIZOME_MIRRORD_LOG_STDOUT env var is set, then enables shell execution
tracing
New options: --unpack-dir --exec-on-unpack --log-to-stdout
Unpacks Zip and Tar files after they are extracted from Rhizome
Runs a given command (executable) after unpacking any Zip or Tar files