Gravity Perks - Preview Submission 1.3.20

Download Gravity Perks - Preview Submission 1.3.20 from nulled fire. Add a simple submission preview to allow users to confirm their submission is correct
Added 'gpps_entry_pre_create' and 'gpps_entry_post_create' filters for modifying entry to be used for replacing merge tags.
Added support for integrating with GF Nested Forms.
Fixed deprecated function notices with GF 2.3.
Fixed issue where merge tags in choice values were not correctly replaced.