demo(datepicker): fix tag name in an example
fix(datepicker): correctly manage focus without jQuery present

The element.focus() will throw an error since the object needs to be unwrapped first.
Should be:  element[0].focus() at a minimum to unwrap the jqlite object since it doesn't expose focus().

Closes #758
docs(CHANGELOG): typo fix
docs(typeahead): document all allowed attributes
refactor(timepicker): wip