call systemctl in subshell to prevent the explorer from failing if it exits non zero

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
Merge branch 'issue/197' into production
++changes(2.3.3)

Signed-off-by: Nico Schottelius <nico@bento.schottelius.org>
implement cdist install

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
add install types

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
dont add help to 2 parsers

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
config already inherits from loglevel parser

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
filter out install objects when running config

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
add missing types from private repo

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
implement --before and --after meta parameters as alternative to require=""

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
remove legacy code snippet: singleton object_ids have been removed in master

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
--whitespace

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
missing import

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
usable output on unresolved objects error

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
even nicer output

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
use pformat or even nicer output

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
bugfix: make --before actually work

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
update tests

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>
Merge branch 'feature/install' into production
Merge branch 'feature/before-after' into production