Major changes in 1.9.1
======================
* client: Handle error events when polling _g_vfs_daemon_call_sync ()
* client: Don't leak the GCancellable's fd in case of an g_poll error
* daemon: New logic to the backend to block requests
* daemon: Add logic to force close active channels
* daemon: Implement auto-busy on unmount
* daemonfile: Re-root the path in set_display_name ()
* http: Add http_backend_get_mount_base ()
* http: Get rid of unnecessary calls to uri_for_filename ()
* dav: Correctly encode URLs
* dav: Unescape the path when setting the mount_prefix of the GMountSpec
* dav: Include username and/or port in the backend's display-name
* dav: Decode the paths of the multistatus response before comparing them
* dav: Check for empty but present displayname dav-property
* dav: Implement query_fs_info and report used and free space
* dav: Use default unmount logic
* afc: Better error messages
* gphoto2: Use new default auto-busy code
* build: Change default tarball compression format to xz
* Translation updates