npm link shared mojits failed on 0.7.2

[ftliou]

Please refer to:
http://developer.yahoo.com/forum/Yahoo-Mojito/npm-link-shared-mojits-failed-on/1376445752796-c287e870-fd51-473e-ac9a-557335d087a3

In mojito/lib/app/autoload/store.server.js

       if (!this._libs.fs.lstatSync(dir).isDirectory()) {
            return;
        }

This block of code stops npm linked shared mojits from being loaded.

[caridy]

regression introduced by fix for issue #1017 /cc @lzhan @isao

[caridy]

@lzhan can you validate and close this?