Removed Old admin models
Cleaning structure + Updated Widgets models
Base template with menu + Libraries
Change Page for Section (close #1935)
Page configuration
Basic Widget Insert, with Freewall grid
First attempt with Polymer and HTML5 import/template
WidgetHandler update
added Websocket communication
MQ/WS bridge
Device loader
sensor componant
Moved Polymer lib
Updated widgets components
WebSockets singleton
Removed Widget JS/CSS from model
add/remove widgets on grid layout