more safety nets when our functions do not do what we expect from them

more safety nets when our functions do not do what we expect from them

2008-09-07  Philipp Kern  <pkern@debian.org>

        * daklib/utils.py (check_hash): change the comment and warn
        if a file is not found when checking the hashes (i.e. when
        it is probably in the pool)

	* daklib/utils.py (check_size): do not bail out if the file
	is not found, because it may be in the pool

        * dak/process_accepted.py (install): bail out and skip the
        upload when ensure_hashes fails, print the rejection messages
        as warnings

Signed-off-by: Philipp Kern <pkern@debian.org>