Fix Docs.aliases

Author: simon04

lib/docs.rb

@@ -101,7 +101,7 @@ def self.generate(doc, version = nil)
   end
 
   def self.generate_manifest
-    Manifest.new(store, all_versions, aliases).store
+    Manifest.new(store, all_versions).store
   end
 
   def self.store

lib/docs/core/manifest.rb

@@ -4,10 +4,9 @@ module Docs
   class Manifest
     FILENAME = 'docs.json'
 
-    def initialize(store, docs, aliases)
+    def initialize(store, docs)
       @store = store
       @docs = docs
-      @aliases = aliases
     end
 
     def store
@@ -21,7 +20,7 @@ def as_json
         if doc.options[:attribution].is_a?(String)
           json[:attribution] = doc.options[:attribution].strip
         end
-        json[:alias] = @aliases[doc.slug]
+        json[:alias] = Docs.aliases[doc.slug]
         result << json
       end
     end