fixing ping command help text
Merge pull request #10 from komidore64/help-text-fix

fixing ping command help text
system list command
system info command
Merge pull request #13 from komidore64/systems-index

systems commands
system create command
Merge pull request #17 from komidore64/systems-index

system create command
WIP products: add fields
Merge branch 'master' into products-v2-cli