daemons: Disable state.xml saving by default

- Change the meaning of --no-recover option flag to --recover.
- Guard each state saving by opt_recover_state flag
- Guard each state recovery by opt_recover_state flag
- The opt_recover_state flag is FALSE by default

Solution to: (bnc#862335)
Merge pull request #168 from pwieczorkiewicz/state-save-off