Merge pull request #24 from dventura3/master

Fixed bug affecting load and save buttons
Added historical chart, changed style
Changed icon for dashboard page
Update README.md
Fixed bug in rule's evaluation
Merge branch 'new_style' of https://github.com/glatorre/webinos-app-hub-homeController into new_style
Improved UI of build page. Improved drag&drop
modified readme file
modified readme file v2
Fixed drop of actuators onto checkboxes
Added icon picture for historical chart
Merge pull request #1 from paolovergori/new_README

New readme
Fixed bad prompt setting panel
Merge pull request #26 from glatorre/new_style

Improved UI, added historical chart
Improved performance
Fixed load_graphics when a service has been unregistered
Improved, engine, several fixes
Several improvements in rules pages
Improved graphics loading
Merge pull request #27 from glatorre/new_engine

New engine, improved performances