Gonzales WordPress plugin 2.3

* added reset style for back-end to keep appearance the same regardless theme

* removed "fatal error: allowed memory size..."
* WordPress 5.0 support
* improved panel appearance

▹ added fix for FastCGI servers (when configuration is not saved)
▹ added support for older PHP versions in MU plugin
▹ improved script ("select" tag script wrapper controller)
▹ improved panel appearance
▹ improved plugin security (create Gonzales tables in database if not exist)