Show host lvm usage

- don't calc real disk usage on home page load - it will be loaded by js
- show host lvm volume groups usage
Fix jsonify, skip empty lines
Fix jsonify - use dict
Remove tuple
Append '%' for percents, fix html
Fix 'running' containers detect
Fix use of $.each
Remove get container disk usage on home page load - pull by js
Fix label class replace
Merge pull request #18 from sergey-dryabzhinsky/lvm-get-host-usage

Lvm get host usage