move sd-card flash device detection to production

ensure that SD-Cards are flashed only in production mode
avoid reboot loops on update sd-card tryings ...
update hp2sm

* r3886
    - remove empty backup and update page
update hp-blob

* r3882
    Web-UI:
    - Everythink's async now.

* r3893
    Web-UI:
    - XBMC dialog did not show up after 'applying' of an update.
fix nginx configuration
    - fix disable accesslog
    - set client_max_body_size to fix file uploads for hp-backup
Update NEWS
Bump System-Image to 3.11.6

- Jump from 0.1.5 to 3.11.6 to keep smartphone Apps untouched
updated NEWS
add sysdetails helper

Add a sysdetails helper to collect some statistical information ...
Evaluating those information could help diggin after freeze
add maintainer
fix homepage/maintainer for system-image-update
add xbmc and update other manuals
update hp-blob
add initial de keymap support
Merge PR#41 -- NEWS Update
disable service start and fix typo for sysdetails
include sysdetails in rdm-hp2
fix sysdetails run script
improve sysdetails:

- archive files on startup
- create subdirectory to save files
- only keep recent archives on startup
- use logdata to overwrite existing files
Update News