added achievement checkings and displaying 0-6, 9-11, 14-16
implemented more achievements, yet to be done: 7,8,12,13,25
added sides of mahjongs
ready to deploy new discard FrameworkElement
removed extra dependencies
modified the discard animation
completed pause button
completed transfer gold animation
stuck in add to deck animation
preparing to change the view structure of peng and gang panel
finalized add to deck animation
changed callback order
added peng animation
version shown to nelson
added google analytics sdk, and sound
all sound files are cut, imported data tracking project
implemented in-game audio management