$.localize doesn't work without culture

[valodzka]

For example, this script fails:

$.culture = $.cultures.ru;
$.localize('hello', 'ru', 'world');
$.localize('hello')

TypeError: culture is undefined { message="culture is undefined"}

[luisabreu]

This is a nasty bug and it prevents the use of the plugin in the real world...

[nikgraf]

I have fixed it in https://github.com/nikgraf/jquery-global/commit/fc51c8c7fb585871132f63798f47d44958c3ab6b