Fix migrations

bin/play

@@ -9,8 +9,7 @@ require 'play'
 # Returns nothing.
 def migrate
   puts "Migrating your database"
-  version = ActiveRecord::Migrator.current_version
-  version = 1 if version == 0
+  version = `ls db/migrate | wc -l`.to_i
   ActiveRecord::Base.establish_connection(Play.config['db'])
   ActiveRecord::Migrator.migrate("#{File.dirname(__FILE__)}/../db/migrate/", version)
 end