mod_sasl2: Further break up success handling, into pre/post stream:features
This allows us to enable mod_smacks after sending success, but before sending
stream:features. Previously, the features were being calculated before SM was
finalized on the session.
We can't finalize SM before sending <success> because it may generate stanzas.
2c07bcf56a36d6e74dc0f5422e89bd61f4d31239 0.8-diverge
1656d4fd71d07aa3a52da89d4daf7723a555e7dd last-google-code-commit