Annoucement: Zipper v2.0 in gestation

[Lecrapouille]

As far some people know I'm not the author of this lib and help when I can but since principally issues come from Windows and CMake worlds (and hardly C++) two domains I hardly know, I want to clean a little this project in my way of doing things.

So I made the branch v1.0.x to let maintain the old code, I made the branch v2.x.y that I'll work on and when stable I'll merge it to the develop branch. For the moment I merged the current code of the develop into the master with the tag 1.0.4.

I hope my way to clean will help. If this not the case let me know!

cc @Togtja