missing permission check in folder creation

[tofixx]

the folder creation does not ensure the permission like in the other methods around with write for assets in the current path. is this the desired behavior or can the permission check be added?

https://github.com/requarks/wiki/blob/98c04fe18e1a0bc98850c7c367adcf1c9981578e/server/graph/resolvers/asset.js#L59