Complete the Crafting Table view/controller

* Add output box to the crafting table view
* Add remaining crafting patterns to all MC 1.7.10 recipes
* Add all crafting patterns to Buildcraft 6.2.6
* Disable mods which don't have patterns yet
* Add the Url constants for computing urls from templates
* Add the `findItemDisplay` to ModPack (along with tests) and remove
  all replace all uses of `getPathSlugs` with it

src/scripts/models/mod_pack.coffee

@@ -9,7 +9,7 @@ BaseModel        = require './base_model'
 {Event}          = require '../constants'
 ModVersionParser = require './mod_version_parser'
 {RequiredMods}   = require '../constants'
-util             = require 'util'
+{Url}            = require '../constants'
 
 ########################################################################################################################
 
@@ -59,6 +59,22 @@ module.exports = class ModPack extends BaseModel
 
         return slug
 
+    findItemDisplay: (slug)->
+        result = {}
+        item = @findItem slug, includeDisabled:true
+        if item?
+            result.modSlug  = item.modVersion.slug
+            result.itemSlug = item.slug
+            result.itemName = item.name
+        else
+            result.modSlug  = _.slugify RequiredMods[0]
+            result.itemSlug = slug
+            result.itemName = @findName slug, includeDisabled:true
+
+        result.iconUrl = Url.itemIcon result
+        result.itemUrl = Url.item result
+        return result
+
     gatherRecipeNames: (options={})->
         options.includeDisabled ?= false
 
@@ -110,6 +126,7 @@ module.exports = class ModPack extends BaseModel
     onModVersionLoaded: (url, data, status, xhr)->
         try
             modVersion = @loadModVersionData data
+            modVersion.enabled = true
 
             logger.info "loaded ModVersion from #{url}: #{modVersion}"
             @trigger Event.load.succeeded, this, modVersion