See extended for changes in 3.0.0
See extended for changes in 3.0.0

- Switched to iron-resizable-behavior
- Uses Material Design Breakpoints set by Google ( https://www.google.com/design/spec/layout/responsive-ui.html#responsive-ui-breakpoints )
- Support for the latest Polymer version
maxiplay/iron-grid,The5heepDev/iron-grid