* tests/accu/Makefile.am: Remove uses of the old
	HAVE_BOOST_PREPROCESSOR conditional.
	* tests/unit_test/cond_tests_boost-preprocessor_boost-tuple:
	Rename as...
	* milena/tests/unit_test/cond_tests_boost-tuple: ...this.
	* tests/unit_test/Makefile.am (COND_TESTS):
	s/cond_tests_boost-preprocessor_boost-tuple/cond_tests_boost-tuple/.
	* tests/unit_test/unit-tests.mk: Regen.