Gravity Perks - Limit Checkboxes 1.3.18

Download Gravity Perks - Limit Checkboxes 1.3.18 from nulled fire. Limit how many checkboxes can be checked.
Added gplcb_checkbox_count filter.
Improved compatibility with Gravity Forms 2.5.
Updated minimum Gravity Perks version to 2.2.5.
Added support for Gravity Flow's User Input steps.