* milena/headers.mk: add new headers to distribution.

	* milena/mln/literal/all.hh: include new headers.

	* milena/mln/literal/max.hh,
	* milena/mln/literal/min.hh: New literals. They use mln_{max,min}
	internaly.

	* milena/tests/unit_test/Makefile.am,
	* milena/tests/unit_test/mln_literal_max.cc,
	* milena/tests/unit_test/mln_literal_min.cc: new unit tests.

git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@3192 4aad255d-cdde-0310-9447-f3009e2ae8c0