feat #567 @html:RadioButton

The Radio button HTML widget with 3 properties
-'name': Radio buttons with the same name will be in the same radio group.
-'value': representing the data behing the widget
bindable property: 'selectedValue', representing the radioButton to select.

US 1984. Close #567.
refactor the html input elements
feat #551 Allow any type in TextInput widget

Allow the use of any html5 type in html TextInput widget

Close #551
feat #548 add npmignore

Close #548. Close #576.
fix #577 Problem with vertical scrollbar inside selectbox widget when popupWidth = -1

When the popupWidth is equals to -1 the vertical scrollbar hides part of the selectbox popup content due to a problem with the overflow-y sets to Auto. With overflow-y equals to scroll it works fine.
refactor whitespace formatting
feat #445 leading tabs detection in the code

A grunt task is added to prevent checking in unformatted files
in the future. It's very simple now, just checks for leading
whitespace being a tab instead of a space.

Close #445.
fix #580 typo inside css class
fix #149 CfgBean description for DatePicker value

Updating the value property in order to accept a date and not a generic Multitype

Close #582
fix #277 aria.core.JsonValidator.normalize throws an object

aria.core.JsonValidator.nomalize when failing throws an object, now it throws an instance of Error.

Close #583
feat #584 bump attester to 1.2.0

Close #584.
refactor Update Syn

Close #33 close #491
fix #558 test on utils.Dom fails in Chrome

In Chrome and Safari the test test.aria.utils.Dom fails in attester because the body of the iframe content doesn't have an height and doesn't scroll properly

Close #581
feat #574 HTML select widget

the select widget has 2 properties,
-a list of items to populate the select element
-'selectedItem' to be bound to a data model

close #574