SELinux scripts
Allow 'Commands:' and 'Options:' line be longer, e.g.:
'Commands that only show information:' or
'Commands that manipulate with devices:'.
Reworked storage command docs.

- moved listing commands to the top.
- clearly split commands that only show/list devices from commands which
  modify devices.
- added short notice that LUKS means encryption.
Merge pull request #112 from jsafrane/devel/rtd

Storage doc changes
Merge pull request #113 from rnovacek/master

networking: add 'list' command for route, dns and address subcommands
Merge pull request #109 from vcrhonek/selinux

SELinux scripts
system: added cpu arch and topology
system: added serial number and asset tag
system: added selinux info
system: added storage info
hwinfo: updated doc strings
system: updated doc strings
Merge remote-tracking branch 'upstream/master'
Merge pull request #114 from pschiffe/master

system: added new info
system: added language info
Merge remote-tracking branch 'upstream/master'
Merge pull request #115 from pschiffe/master

system: added language info
system: there's no info about size for cd disks
hwinfo: catch any error and continue in outputing next info
system: catch any error and continue in outputing next info