Passing SafeString as content

[marksteve]

Doesn't work:

> pithy.button('.button', new pithy.SafeString('string'))
g.SafeString {_value: "<button class="button"></button>", toString: function, valueOf: function}

Works:

> pithy.button('.button', [new pithy.SafeString('string')])
g.SafeString {_value: "<button class="button">string</button>", toString: function, valueOf: function}

[caolan]

The contents is always expected to be an array, but I suppose it would be nice to support String and SafeString too.