Instagram Feed Pro 6.4

* Important: On December 11, Instagram will be making some major platform changes which will disrupt Location feeds, Single Post feeds, and Hashtag feeds. Please [see here](Instagram API Changes - December 11, 2018) for more information. We are working hard on a plugin update which will be released prior to December 11 and include support for the new Hashtag API, along with directions on how to transition to it in order to avoid any disruption in your Hashtag feeds.
* Fix: Fixed an issue with spaces in the 'includewords' filter setting
* Fix: Fixed an issue with email "mailto" links in captions

* Fix: An "Unexpected end of JSON input" error was occurring on certain servers due to an issue with the name of the header cache
* Fix: The "Moderation Type" setting was not saving successfully on the settings page

* Fix: Japanese characters in hashtags were not working with the "includewords" filtering setting
* Fix: Fixed a bug caused by the previous updated which was causing the Masonry layout to display all posts at the same height