./configure needs util/check-make-install.in to be present in the source
directory in order to complete successfully. Make sure this file is
included in source tarballs created from the repository.
Convert the logic (currently present in the form of "rm -rf" calls in
util/kit.sh) for removing files and directories which are tracked by Git
but redundant in release tarballs into a set of .gitattributes rules
which allow the same effect to be achieved using "git archive".
(cherry picked from commit 925ecb0aae)
Michał KępieńandMatthijs Mekking
Petr MenšíkandMark Andrews
Curtis Blackburn
Evan Hunt