Created not detecting a folder

[wattoc]

On a Created node event, a folder is not being detected correctly, so nothing is uploaded properly.

Probably a minor implementation issue as I've just figured out how to trigger this event consistently.

[wattoc]

This is due to symlinks - copy something from the desktop and it'll fail to be detected as a directory due to it actually being a symlink.

At this stage I'm not sure how best to resolve this:

If I traverse the symlink it breaks the relative synching paths of Dropbox (since the folders are no longer actually in Dropbox) and things get a bit confused. The watching features will also need to be able to handle being called against symlinks and traversing, which I don't think they are doing currently. It seems like this might be a useful feature to support - you could symlink another folder into Dropbox and then use it outside Dropbox, have it auto update into Dropbox, etc. Risk of me making big bugs is rather large with this.

Otherwise we can leave as is for now, since arguably we don't actually support symlinks.