[RFC] Community driven branch extensions

[Alexander Belchenko]

I don't know is it possible to have with your idea of "features" but there is need for applying
filesystem restrictions for cross-platform projects. Mostly to make sure that in cross-platform
project linux devs won't screw up the tree for windows or macosx devs, e.g.:

1) Prohibit adding symlinks to the tree
2) Prohibit adding files in the same directory which different only in case (foo vs. Foo)
3) Prohibit adding unicode filenames
4) Ignore changes to x-bit

Something like that.