[13.03] Update of the week: X Marks the Spot, Shadow Packs, Lucky Treasures Sets

The maintenance is over, the server is online. Changelog:

Events and Shop:
— The Shadow Packs arrived in launcher.
— The Lucky Treasures Sets arrived in launcher.
— The "X Marks the Spot" event has begun.

Finished activities:
— The Special Packs for Shadow Chaser left the launcher.
— The Battle manual packs left the launcher.
— The Sky Army Treasure left the launcher.
— The Luckybox Sets left the launcher.
— The Set with the Bossnia Crown left the launcher.
— The "Increased Drop Chance +30%" event has come to an end.
— The "Royal Bossnia" event has come to an end.