ltihooks.py apparently breaks the import mechanisms of Python 2.6,
causes SWIG's runtime to fail to share a global type table, and
yields various failures in our tests.
* wrap/python/ltihooks.py: Delete.
* wrap/python/Makefile.am (EXTRA_DIST): remove ltihooks.py.
* wrap/python/tests/bddnqueen.py, wrap/python/tests/interdep.py,
wrap/python/tests/ltl2tgba.py, wrap/python/tests/ltlparse.py,
wrap/python/tests/ltlsimple.py, wrap/python/tests/minato.py,
wrap/python/tests/modgray.py, wrap/python/tests/optionmap.py,
wrap/python/tests/setxor.py: Do not use ltihooks.
* wrap/python/tests/run.in (pypath): Include the .libs/ directory
in the search path so that Python can find the *.so libraries.
(libspotswigpy_la_SOURCES, libspotswigpy_la_CFLAGS)
(libspotswigpy_la_LDFLAGS): New variables.
(_spot_la_LIBADD, _buddy_la_LDFLAGS): Link with libspotswigpy.la
($(srcdir)/spot_wrap.cxx, $(srcdir)/buddy_wrap.cxx): Run
swig with -c.
* wrap/python/tests/libpy.c: New file.
* wrap/python/tests/run.in: Run python if no arguments are given.
* wrap/python/tests/interdep.py: New file.
* wrap/python/tests/Makefile.am (TESTS): Add interdep.py.
