Add SystemdTarget module
Make use of /bin/service_start in inst-sys to start a service
Improve test example wording;  run helper script only for "start" command
Improve test example wording further
Finish the target unit api
Merge pull request #190 from vmoravec/start-service-instsys

Make use of /bin/service_start in inst-sys to start a service
Add tests for target units
Add message to SystemctlError
Add examples
Review updates; add notice into changes file
Merge pull request #191 from vmoravec/add-systemd-target

Add support for systemd target units with SystemdTarget module
First part of Service changes done
- better check if chef-client is running (bnc#868483)
Merge pull request #192 from jsuchome/master

- better check if chef-client is running (bnc#868483)
added Popup.Feedback

for displaying progress popup when running a block of code

- 3.1.26
Merge pull request #194 from yast/popup_feedback

added Popup.Feedback
Refactored SuSEFirewallServices

- Mostly to throw an exception if required service is not found, till now
  it used to be just logged and thus was hard to find out what was wrong
- bnc#867377
Added testcase for SuSEfirewallService
Using the new exception SuSEFirewalServiceNotFound in CWMFirewallInterfaces
Finish the changes, tests for Service missing still