Fixed bug with sub field default values not working in a repeater field

http://support.advancedcustomfields.com/discussion/3706/select-field-default-value-not-working
Signed-off-by: Elliot Condon <e@elliotcondon.com>
Fixed issue with "acf_parse_value" causing any float values in a select choice list to become integers.

Signed-off-by: Elliot Condon <e@elliotcondon.com>