Server Allocator For WHMCS 1.4.0 Not Nulled

NEW FEATURE

• Possibility to edit the existing groups of switching rules - case #56

IMPROVEMENT

• Added validation for the configuration of switching rules that requires choosing at least one default server

REMOVED

• Deprecated libraries of "mysql_" PHP extensions

BUG FIX

• Eliminated critical error that could occur when accepting an order if no default server was chosen in the addon module - case #81
• Other minor code corrections, UI and language adjustments