Add Attribute Shorthand Syntax

Implement a shorthand attribute syntax that can be used for special
attribute functionalities such as bindings.

Syntax:
  @attribute="javascript"

Example:
  <div @id="Date.now()">...</div>

This functionality is customizable by overwriting razorjs' attr
property, such as:
require('razorjs').attr = function(name, value) {
  // establish e.g. bindings
}
Add Shorthand Inline Syntax

Implement a shorthand inline syntax that can be used for special inline
functionalities such as bindings.

Syntax:
  @{javascript}

Example:
  <span>@{isDone ? 'foobar' : ''}</span>

This functionality is customizable by overwriting razorjs' inline
property, such as:
  require('razorjs').inline = function(js) {
    // establish e.g. bindings
  }