Major updates to local fields / export / generate to fix many sub field related issues

https://github.com/AdvancedCustomFields/acf5-beta/issues/54 https://github.com/AdvancedCustomFields/acf5-beta/issues/65
Signed-off-by: Elliot Condon <e@elliotcondon.com>
Trial new acf__ and acf_e functions

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

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