Merge pull request #53 from AsydSolutions/devel

UX improvements
Merge pull request #54 from AsydSolutions/devel

fix for host-hostgroup relation on name change
Merge pull request #55 from AsydSolutions/devel

Fixes
fix
Now supporting "undeploy" files
Error handling for unreachable hosts when (un)deploying
Colorized error notifications
briefly documented undeploy functionality
new version