Fixed print of boolean's.

app/assets/javascripts/app/index.coffee

@@ -52,7 +52,7 @@ class App extends Spine.Controller
   @viewPrintItem: (item, attribute_config = {}, valueRef) ->
     return '-' if item is undefined
     return '-' if item is ''
-    return item if !item
+    return item if item is null
     result = item
 
     # lookup relation
@@ -92,6 +92,13 @@ class App extends Spine.Controller
       if attribute_config.options[result]
         result = attribute_config.options[result]
 
+    # transform boolean
+    if attribute_config.tag is 'boolean'
+      if result is true
+        result = 'yes'
+      else if result is false
+        result = 'no'
+
     # translate content
     if attribute_config.translate || (isObject && item.translate && item.translate())
       isHtmlEscape = true

app/assets/javascripts/app/models/_application_model.coffee

@@ -472,7 +472,7 @@ class App.Model extends Spine.Model
 
   unsubscribe from model or collection
 
-  App.Model.unsubscribe( @subscribeId )
+  App.Model.unsubscribe(@subscribeId)
 
   ###