Don't add pstdout to ipstream mode if pstderr given. Set initial mode correctly on open. Bump version to 0.7.0 due to change in behaviour.
Don't add pstdout to ipstream mode if pstderr given.
Set initial mode correctly on open.
Bump version to 0.7.0 due to change in behaviour.

zmij/tip-http,zmij/pg_async,zmij/tip-http,zmij/tip-http,zmij/tip-http