Continue to look for recipes in disabled books

Update models so that when a recipe book is disabled, it no longer is
used for finding names to display in the UI, but it is still used for
finding recipes to make.

src/scripts/models/recipe_book.coffee

@@ -23,8 +23,6 @@ module.exports = class RecipeBook extends BaseModel
     # Public Methods ###############################################################################
 
     gatherNames: (result)->
-        return unless @enabled
-
         for recipe in @recipes
             continue if result[recipe.name]
             result[recipe.name] = value:recipe.name, label:"#{recipe.name} (from #{@modName} #{@modVersion})"
@@ -32,8 +30,6 @@ module.exports = class RecipeBook extends BaseModel
         return result
 
     gatherRecipes: (name, result)->
-        return unless @enabled
-
         for recipe in @recipes
             if recipe.name is name
                 result.push recipe

src/scripts/models/recipe_catalog.coffee

@@ -24,6 +24,7 @@ module.exports = class RecipeCatalog extends BaseModel
     gatherNames: ->
         nameData = {}
         for book in @books
+            continue unless book.enabled
             book.gatherNames nameData
 
         result = []

src/templates/recipe_catalog.jade

@@ -17,4 +17,3 @@
             td
                 input.recipe_book_url(placeholder="enter a URL to load another recipe book...")
                 button.recipe_book_load_button Load
-    .load_error: p