Add devise gem and panel/users controller

lib/tasks/dev.rake

@@ -1,6 +1,9 @@
 namespace :dev do
   
   task :build => :environment do
+    User.delete_all
+    User.create!( :email => 'ihower@rulingcom.com', :password => 'password', :password_confirmation => 'password' )
+    
     [Announcement, Item, Snippet, Layout].each { |m| m.delete_all }
       Layout.create!( :name => 'root', :description => 'root', :content_zh_tw => File.open("#{RAILS_ROOT}/lib/template/root.layout.zh_tw").read,
                                       :content_en => File.open("#{RAILS_ROOT}/lib/template/root.layout.en").read)