First of all: I actually checked if 3d software is in this site's scope. Apparently it's kind of grey area but it is allowed (especially when it comes to texture).
So, I made a low poly model in Autodesk 3ds Max 2014, unwrapped it and baked it (via render to texture, ambient occlusion as diffuse).
I immediately noticed that there's a problem alongside the seams: there were gaps there (see image below), and I couldn't find a way to fix them.
Here's a image showing the difference between the model with no material (and hence the solid white), and a copy of the model with the diffuse map.
Seams are in green here:
The UV template: