Modify: tracking in utImage for firing only once the events + update to versioon 1.3.4-alpha52
Modify: tracking in utSticker for firing events only once + update to version 1.3.4-alpha53
Modify: tracking of 'new sticker added' in utSticker + update to version 1.3.4-alpha54
Fix: tracking issues in utSticker and mediaPlayer + update to version 1.3.4-alpha55
Fix: bug in utSticker (bad function naming) + update to version 1.3.4-alpha56
Move: 'added sticker' tracking event in utSticker + update to version 1.3.4-alpha57
Fix: tracking function in mediaPlayer + update to version 1.3.4-alpha58