Build in vfat support (to aid debugging)
Move sys-libs/libeatmydata to sys-apps/eatmydata
Use git pull instead of patches where possible

This is still a nasty hack, but eases maintenance a little bit.

Also changed some other small things around.
Stop removing our own files if $PV hasn't changed
Revert "Build in vfat support (to aid debugging)"

It wouldn't work without NLS modules anyway.

This reverts commit 52ba9970b0d4842d62179bf88cc9825053e8edc7.
Fix spacing
Don't set PLATFORMS for -scm packages

Live code is, by definition, untested on any platform.