Fix notices during export

Notice: Trying to get property of non-object in /home/ess/public_html/wp-includes/general-template.php on line 1471
Add Chinse language

Add Chinese language file。
Location rule: Update 'User type' rule to allow for custom roles

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Update to core _functions.php to prevent possible error when loading a field which doesn't exist

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Image field: fixed i.e. .js error

Signed-off-by: Elliot Condon <e@elliotcondon.com>
v4.1.3

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Page Link: Fixed errors produced by recent changes to post object field

Signed-off-by: Elliot Condon <e@elliotcondon.com>
更新翻译
v4.1.4

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Prevent possible PHP error by validating the taxonomy term value before formatting

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Checkbox field: Added horizontal options

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Extra validation on the create_fields function to allow a $field to be false

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Validation: Added missing validation for email input

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Validation: Improvements to checkbox and radio fields

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Big upgrade to image field JS. New option for library!

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Updates all field files. Improved defaults

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Added acf/get_post_id helper

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Updated API functions to use acf/get_post_id filter

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Image field: Fixed JS error caused by new updates to library

Signed-off-by: Elliot Condon <e@elliotcondon.com>
Added $l10n var / filters for all fields

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