Merge pull request #41 from tstrachota/docs

basic docs on host creation
refs #3246 - fixes in commands to match output changes
fixes #3594 - host power related commands
Merge pull request #43 from tstrachota/host

fixes #3594 - host power related commands
fixes #3215 - Gemfile.local added
fixes #3215 - gemspec cleanup
Merge pull request #44 from tstrachota/gem_cleanup

fixes #3215 - Gem cleanup
host creation docs updated with params for bare metal