Inherit parent layout

[xyz]

Page should inherit layout from their parents by default.

_form_advanced_options.html.erb:

    <% if @page.parent_id? %>
      <%= f.select(:layout_template, @valid_layout_templates, {:selected =>  @page.parent.layout_template}) %>
    <% else %>
      <%= f.select(:layout_template, @valid_layout_templates )%>
    <% end %>

Edit: Likewise for the page parent's view_template.

[parndt]

Can you open a pull request?

[xyz]

For layout_template, sure. I'd just like to figure out view_template first (new to refinery :) ).

[xyz]

Done, pull request opened.

[ugisozols]

Fixed by #1581.