Add @expects_obj decorator to cli function as required by the upcoming Argh 1.0 API
Added basic support for Nagios plugin output for check command through the --nagios option
Forbid the usage of 'all' word as server name
Finalised files for version 1.2.0
Update RPM's spec files
Update the ChangeLog file
Merge branch 'master' into hoeha

Conflicts:
	barman/cli.py