Upgrading from Dovecot Pro 3.1.x to Dovecot Pro 3.2.x

Dovecot Pro

Changed Setting Defaults

These changes don't take effect until dovecot_config_version is changed to 3.2.0.

Setting	Old Default	New Default	Notes
@metric_defaults/proxy/metric		Adds proxy_session_established
@fs_dictmap_defaults/cassandra/obox_track_copy_flags	no	yes
fts_search_read_fallback	yes	no
mail_attachment_detection_options		add-flags content-type=!application/signature