Style attributes cleaned up

…w, hide, remove to toggle buttons

enabling and disabling of radio buttons groups now done through bb10 radio
object, enabling/disabling of individual radio's now done through enable()
and disable() functions, look of sample page now the follows the
convention set by the sample buttons page

function isEnabled which is part of the radio input itself

samples/radio.htm

necessary

Added enable, disable, show, hide, remove to checkboxes and added show, ...

Fix for issue #410

…ou clicked an action item while the menu was peeking