property :url_aliases, [String, Array], :default => []
property :revision, Fixnum, :default => 1
property :overlay, [TrueClass, FalseClass], :default => false
+property :default_layer, [TrueClass, FalseClass], :default => false
action :create do
file "create layer yaml definition" do
content YAML.dump(:name => layer,
:url => "http://#{site}/layer/#{layer}/{z}/{x}/{y}.png",
:attribution => copyright,
+ :default => default_layer,
:maxZoom => max_zoom)
end