Fixes 2913 - commands for installation media
Merge pull request #7 from tstrachota/media

Fixes 2913 - commands for installation media
Fixed context names
fixes #2904 - commands for hosts
Merge pull request #8 from mbacovsky/2904_hosts

fixes #2904 - commands for hosts
commands reflect new output definition
Merge pull request #9 from tstrachota/formatting

commands reflect new output definition
fixes #2914 - Add hostgroup commands
Merge pull request #11 from mbacovsky/2914_hostgroups

fixes #2914 - Add hostgroup commands
fixes 2914 - operating systems
- crud actions
- setting/deleting parameters
support for identifiers in commands
os - use of identifiers
os - added fields that are missing in api docs
hostgroups - use of identifiers
Merge pull request #10 from tstrachota/os

fixes 2914 - operating systems
Copy/paste error in subnets
fixes #2908 - remove timestamps from the list commands
Merge pull request #13 from mbacovsky/2908_timestamps

fixes #2908 - remove timestamps from the list commands
fixes #2919 - Add smart proxy commands
Merge pull request #12 from mbacovsky/2919_smart_proxy

fixes #2919 - Add smart proxy commands