Merged from luxigo:master
Added -S switch support to manualy set SSH hosts to nodecontrol and sshcopykeys
Added -h switch support to show help to nodecontrol and sshcopykeys
Update README.md

Documentation update
Update README.md

Documentation update
Updated corrxml to the latest version
Merge branch 'master' of github.com:F0x06/elphel-parallel-processing
Fixed corrxml path in post_processing
Fixed a bug in sshloginfile file reading when an empty line is in it
Update README.md

Documentation update
Update README.md

Documentation update
Update README.md

Documentation update
Update README.md

Documentation update
Added Table Of Contents (TOC) to documentation
Documentation update
Merge branch 'master' of github.com:F0x06/elphel-parallel-processing