This replaces the use of uci_validate_section() with
uci_load_validate(), which removes the need to declare local variables
for every config option.

This also adds a service_triggers() function, removes a duplicate
option, and removes some unnecessary curly brackets.

Signed-off-by: Jeffery To <jeffery.to@gmail.com>

Signed-off-by: Maxim Storchak <m.storchak@gmail.com>

Signed-off-by: Maxim Storchak <m.storchak@gmail.com>

Signed-off-by: Maxim Storchak <m.storchak@gmail.com>

This is a port from old packages repo with the following improvements:
- allow to select multiple addresses and ports to listent to
- support both address- and name-based ACLs
  (note: config option has been changed from "allow" to "allow_address", "allow_name")
- support more optionf for LUNs
- support various device types (disk, cd, sg passthrough)
- bind accounts to multiple targets
- use uci_validate_section in the init script
- improve error reporting, use logger instead of echo
- set number of IO threads to 2 by default (affects memory footprint)
- configure keepalive
- update to 1.0.48

Signed-off-by: Maxim Storchak <m.storchak@gmail.com>