Unable to synchronize folder between more than two devices

[mateusz-gozdek-sociomantic]

Augeas first adds an entry to file and then it replace it with a new one. This is clearly not a correct behaviour.

[mateusz-gozdek-sociomantic]

I prepared a fix for this. It's this branch. I will raise an PR after merging #13 and #14.

[whefter]

After looking at this for a bit and playing around with Augeas, it turns out there's an easy fix for it. The latest commit fixes this. I'll add some comments to your PR as well.