[Jamin] gitignore

[Guido Aulisi]

I don't see a .gitignore file in the git repository yet.
I would suggest to exclude all auto generated files like these:

# http://www.gnu.org/software/automake

Makefile.in

# http://www.gnu.org/software/autoconf

/autom4te.cache
/aclocal.m4
/compile
/configure
/depcomp
/install-sh
/missing

THanks