Ultimate Member - Instagram 2.0.6

* Fixed: Using Long-live Facebook token
* Fixed: JS initialization process of Instagram
* Fixed: CSS grid styles for Instagram Photos field

* Added: support new Facebook API, because Instagram API is deprecated for new registered APPs
* Added: Sanitize functions for request variables
* Added: esc_attr functions to avoid XSS vulnerabilities
* Added: ability to change templates in theme via universal method UM()->get_template()
* Fixed: Instagram connection
* Fixed: Loading shortcodes and enqueue styles

* Fixed: WP native AJAX handlers