* added regex support for CSS/JS manipulation
* improved textarea field behaviour to keep its value when selecting other fields
* improved autoupdate mechanism (affected by older than 2.1.5)
* fixed bug where temporarily disabled plugin caused global plugin disabling
= 2.1.6 (2019-11-13) =
* fixed MU plugin error on front-end after 2.1.5 update
* WordPress 5.3 support
* added RAM limit information for visited page
* fixed bug in MU plugin dependency checker
* fixed database error issue when tables are not created automatically
* reduced number of SQL queries
* removed group section if doesn't present any data
* unified panel appearance
