Arcyd: test bad landing better

Explicitly expect 'bad land' status during the test_I_MergeConflicts
test.

Test Plan:
Deliberately break bad landing handling, check that the test fails.
$ PYTHONPATH=py/phl nosetests py/abd/abdi_processrepo__t:Test -v
$ ./precommit.sh
Arcyd: test 'bad author' better

Explicitly expect 'bad pre-review' status during the
test_F_NoInitialAuthor test.  Expect a review to be created when the
issue is fixed. Expect that a mail was sent with the error.

Test Plan:
Deliberately break bad pre-review handling, check that the test fails.
$ PYTHONPATH=py/phl nosetests py/abd/abdi_processrepo__t:Test
$ ./precommit.sh