Gravity Perks (Gravity Wiz) 2.3.12

Fixed issue where minimum requirement admin notices were not displayed in WordPress dashboard. Gravity Forms 2.5 no longer shows notices on their settings pages.
Fixed issue where double notices were displayed on plugin row.
Fixed issue where perks' init was not correctly halted when min requirements were not met in Gravity Forms 2.5.

Fixed issue where extraneous HTTP requests checking for announcements would be sent from the WordPress admin dashboard when used in conjunction with W3 Total Cache's Object Caching

Removed deprecated Markdown library.
Added security enhancements.