Fix retrieving layer info

lib/psd/layer/info.coffee

@@ -9,7 +9,7 @@ LAYER_INFO = {
   layerId:                require('../layer_info/layer_id.coffee')
   layerNameSource:        require('../layer_info/layer_name_source.coffee')
   locked:                 require('../layer_info/locked.coffee')
-  metadataSetting:        require('../layer_info/metadata_setting.coffee')
+  metadata:               require('../layer_info/metadata.coffee')
   name:                   require('../layer_info/unicode_name.coffee')
   nestedSectionDivider:   require('../layer_info/nested_section_divider.coffee')
   sectionDivider:         require('../layer_info/section_divider.coffee')
@@ -35,7 +35,7 @@ module.exports =
           .get()
 
         unless @[name]?
-          do (name) => @[name] = -> @adjustments[name]
+          do (name) => @[name] = => @adjustments[name]
 
         keyParseable = true
         break

lib/psd/layer_info/metadata_setting.coffee → lib/psd/layer_info/metadata.coffee

 LayerInfo = require '../layer_info.coffee'
 Descriptor = require '../descriptor.coffee'
 
-module.exports = class LayerId extends LayerInfo
+module.exports = class Metadata extends LayerInfo
   @shouldParse: (key) -> key is 'shmd'
 
   parse: ->

lib/psd/node.coffee

@@ -48,7 +48,9 @@ module.exports = class Node extends Module
     Object.defineProperty @, 'width',  get: -> @right - @left
     Object.defineProperty @, 'height', get: -> @bottom - @top
 
-  get: (prop) -> if @[prop]? then @[prop] else @layer[prop]
+  get: (prop) ->
+    value = if @[prop]? then @[prop] else @layer[prop]
+    if typeof value is 'function' then value() else value
 
   visible: ->
     return false if @layer.clipped and not @clippingMask().visible()