update hp2sm

- added z-wave update, added camera motion detection settings, cleanup and small changes
add known_hosts for user homepilot
removed old z-way config directory
fixed nginx config for z-way
added xbmc log
fix LED order

The LED's are different named in device tree and chassis
improve behavior of pushing upstream changes
remove volatile.cache on update
add size attribute to manifest
update hp-blob

- ZW HP1->HP2 fix.
- Fixed ZW blacklist file location.
- Relocated scene de-active file location.
update hp-blob

- Backup-restore script waits for services to terminate.
fix z-way directory
update hp-blob

- fix z-way backup
JSON expects "null" for empty values

Fix incorrect entry for empty values: undef -> null
Update System::Image::Update to recent git status

* update to most recent developent status on Github
  - deal with status slightly better to avoid stuck on reboots
  - fix handle broken downloads
  - improve documentation
* correct homepage to GitHub repository (instead of Unix::Statgrab's HP ^^)
* add dependency to Archive::Peek::Libarchive to avoid external flash process
Update System::Image::Update

* fix URI composing
* fix hash-sum comparison
* fix initialization
* fix invoking right callbacks
* clean up code