implement saved searches, move user boolean settings to bitprefs

db/migrate/20140603225334_create_saved_searches.rb

@@ -0,0 +1,16 @@
+class CreateSavedSearches < ActiveRecord::Migration
+  def change
+    create_table :saved_searches do |t|
+      t.integer :user_id
+      t.text :tag_query
+      t.text :name
+      t.string :category
+
+      t.timestamps
+    end
+
+    add_index :saved_searches, :user_id
+    add_index :saved_searches, :tag_query
+    add_index :saved_searches, :category
+  end
+end