Make doctest output easier to parse

Verbose mode w/ doctest drowns out actual failures.

Author: chadwhitacre

runtests.sh

@@ -1,5 +1,7 @@
 #!/bin/sh
 DATABASE_URL=postgres://jrandom@localhost/test py.test tests.py -v
-python postgres/__init__.py -v
-python postgres/cursors.py -v
-python postgres/orm.py -v
+echo "Starting doctests."
+python postgres/__init__.py
+python postgres/cursors.py
+python postgres/orm.py
+echo "Done with doctests."