Todos before we merge the fork into the main line

[IgorTodorovskiIBM]

• Make sure all functional tools are indeed functional after install - Igor (n-z) /Haritha (a-m)
• Test installing into a shared location (for sysadmins) - Russell/Igor
• Update documentation - Team
• Test on 3270 - Igor - omvs (running on 3270) does not like escape sequences, fix zopen-init so it avoids adden them #51
• Stable/Dev line support zopen upgrade should upgrade only for it's release line (dev or stable) #47 - Russell
• Rebase changes on top of meta/main - Igor
• Fix issues:
  • Provide consistent fields for the 'zopen list' options #41
  • "zopen alt" is not working with perl #31 (Haritha)
  • Cache json into a suitable location #33 (Igor)
  • Should we remove zopen-install and rename zopen-download to zopen-install? #44 (Igor)