django 1.3 postgresql schema (search path) fix for inspectdb and db connection

django-schema_inspectdb-changes

= Modify: django.core.management.commands.inspectdb
 - line 33, add
   - cursor.execute("SET search_path TO myschema")
 - line 80, change to
  - field_type = 'ForeignKey(\'%s\'' % rel_to
   - now you can ignore the model ordering

= Modify: django.db.backends.postgres_psycopg2.base
 - line 147, add
  - cursor.execute("SET search_path TO myschema")
  - You may need to add the above line to lines 46 and 55, so that it happens during each execute

- C. Bess