Bug: Make sure mod recipes for MC items show up

This fixes a regression where recipes for vanilla Minecraft items
(e.g., Iron Ingot) added by mods (e.g., Pulverized Iron to Iron
Ingot) didn't show up on that item's detail page.

src/coffee/models/parser_versions/mod_version_parser_v1.coffee

@@ -153,7 +153,7 @@ module.exports = class ModVersionParserV1 extends CommandParserVersionBase
 
         createSlug = (name)=>
             item = @_rawData.items[name]
-            if item?
+            if item? and item.type isnt 'update'
                 slug = new ItemSlug modVersion.modSlug, _.slugify name
             else
                 slug = new ItemSlug _.slugify name
@@ -198,6 +198,7 @@ module.exports = class ModVersionParserV1 extends CommandParserVersionBase
             pattern: recipeData.pattern
             tools:   toolStacks
 
+        logger.debug "adding recipe: #{recipe}"
         modVersion.addRecipe recipe
         return recipe