Bugfix remember multi account

[Revadike]

Fixes #88

[SzymonLisowiec]

This isn't a resolving issue for remember multiple account. Please take a look /src/Http.js just Http class isn't adapted to support multiple cookie jars. Add it will cause conflicts and errors (e.g. "no cookie jar file") in some cases.

[Revadike]

This isn't a resolving issue for remember multiple account. Please take a look /src/Http.js just Http class isn't adapted to support multiple cookie jars. Add it will cause conflicts and errors (e.g. "no cookie jar file") in some cases.

I'm confused. Why does it need to support multiple cookie jar? I assume you'll make a new launcher instance for each account. That should be fine, right?