Instagram Feed Pro 6.4.1

* Tweak: Store URL switched to https to prevent update error.
* Tweak: Code in SB_Instagram_Connected_Accounts class removed that was causing problems for some users. Site would crash intermittently with warning about php.ini settings.
* Fix: PHP warning when trying to count boolean related to an empty comment cache.
* Fix: While viewing a video in the lightbox, the lightbox would automatically go to the next slide when it finished.

* Fix: Welcome page updated to work with CSS changes in WordPress 5.2.
* Fix: Using "Shoppable Feeds" feature would cause images to disappear when the resolution of the images were raised.
* Fix: Recent hashtag feeds using multiple hashtags where some hashtags did not have many posts would show an incorrect number of images in the feed.

* Fix: Added check for WordPress version 3.4 to disable image resizing features.
* Fix: Recent hashtag feeds would display posts out of order if they shared saved posts from user feeds.
* Fix: Arbitrary API call was being made for user feeds with headers.