FO: Use SRV TTL in fail over code Resolves: https://fedorahosted.org/sssd/ticket/1884 Removes the hardcoded SRV TTL timeout and uses TTL from the DNS instead. Reviewed-by: Pavel Březina <pbrezina@redhat.com>

fo srv: add priority to fo_server_info This will give SRV plugins all information needed for additional sorting.

Fix czech specific character in my name

add fo_discover_servers request This request takes discovery domain for primary servers and other domain for backup servers and returns list of primary and backup servers. If primary domain is not reachable, it returns servers found in backup domain as primary servers.

DNS sites support - SRV DNS lookup plugin https://fedorahosted.org/sssd/ticket/1032 This plugin mimics the current behaviour. If discovery_domain is set it is the only domain that is tried. If discovery_domain is not set, we try to autodetect domain first and if that fails or SRV lookup on this domain fails, we fallback to SSSD domain name.

DNS sites support - SRV lookup plugin interface https://fedorahosted.org/sssd/ticket/1032 Introduces two new error codes: - ERR_SRV_NOT_FOUND - ERR_SRV_LOOKUP_ERROR Since id_provider is authoritative in case of SRV plugin choise, ability to override the selected pluging during runtime is not desirable. We rely on the fact that id_provider is initialized before all other providers, thus the plugin is set correctly.