FLOE-207: Added tooltips

Implemented the tooltip feature for bindDialog and updated the styles to match the latest wireframes.

http://issues.fluidproject.org/browse/FLOE-207
Hi @jobara - could you unwrap one more level of declarative configuration, and subsume these handlers into an area of configuration called "modelToClass" or some such (naturally operated by a suitable grade) - which, for example, takes configuration of the form: 
"modelToClass": {
    "isFocused.icon": "focus",
    "isHovered.icon": "hover"
}

This should let us eliminate the last redundancy in our listeners - cheers