Updates for recent ssl-fetch changes

output.py: removes output mappings, and adds level arg for error().
{remotedb, tar}.py: adds connector_output mapping variable.
cli.py: Adds byte array support for selection
api.py: fixes success assignment in delete_repos()
api.py: fixes byte string output for update_news()
api.py: Adds update_news capabilities to readd_repos
{argsparser, cli}.py: adds --readd cli option