Allow yamltodb -u to process \copy statments.

 * pyrseas/dbobject/table.py (Table.data_import): Return the \copy
   statement as a five-element tuple so that it can be easily used by
   yamltodb.
 * pyrseas/lib/dbconn.py (DbConnection.copy_from): New method to wrap
   psycopg function.
 * pyrseas/testutils.py (DbMigrateTestCase.run_pg_dump): Add incldata
   argument to create a pg_dump with data.
 * pyrseas/yamltodb.py: If -u option, process \copy statements via
   copy_from.
 * tests/dbobject/test_static.py: Adjusts the StaticTableToSqlTestCase
   copy_stmt formats.
 * tests/functional/film-schema-0.3b.sql: Add INSERT to populate the
   genre table.
 * tests/functional/test_filmversions.py
   (FilmTestCase.test_film_version_03): Add a user and repo config
   file to export and then import the genre table.