Does not register module.

[akidee]

Example:

require.def({
    "underscorex": {
        injects: [ 'require', 'exports', 'module' ],
        factory: function (require, exports, module) {

            var _ = exports = module.exports = require('underscore');
            console.log(_)

            // libary defined here
        }
    },
    "underscore": {
        injects: [ 'require', 'exports', 'module' ],
        factory: function (require, exports, module) {


            var _ = ...

            // Must be commented out, because Yabble does not define module.exports
            if (typeof module !== 'undefined'/* && module.exports*/) {
            module.exports = _;
                _._ = _;
            } else {
                root._ = _;
            }

            // libary defined here
        }
    }
})

console.log() prints {} instead of the underscore library.

[akidee]

Fixed by #6