Add 'checked' attribute to checkbox component. Fix gh-97.

[hjrnunes]

This fixes issue #97

As far as I could see, the 'checked' attribute of the checkbox was not wired to the state atom, so that if you would reset it, the checkbox would not "un-check".

I used merge there because we only want to add "checked" if the checkbox is meant to be checked as the absence of that attribute is the only correct way of saying it shouldn't.

This should now work fine when you clear the form:

(defn annotate-pane []
  (let [doc (atom nil)]
    (fn []
      [:div
       [:p (str @doc)]
       [bind-fields
        [:input.form-control {:field :checkbox :id :first-name}]
        doc]
       [:button
        {:on-click #(reset! doc nil)}
        "clear"]])))

[yogthos]

Ah perfect, that makes sense to me.

[yogthos]

just pushed the fix to clojars with 0.5.22

[hjrnunes]

Cool thanks!