Verze 2.9.41

[Laci]

What's new in 2.9.41:

*) routing-test - fixed bugs introduced in 2.9.40:
bgp routes were not removed;
was possible to enter busy-loop;
*) fixed RADIUS rate attribute processing in wireless;
*) fixed RSTP protocol version number;
*) certificates - sometimes when importing CA certificate, certificate
cache was reset. Fixed;
*) graphing - incorrect scale legend bugfix for large data amounts;
*) improved support for realtek 8169 chip (routerboard 44G)
*) user manager - added PayPal payment system;
*) user manager - voucher customization bugfix;
*) user manager - user signup bugfix;