Merge branch 'feature-sounds' into devel

...ssets/text/screen/encyclopedia/encyclopedia_cs.properties

core/assets/cs/screen/encyclopedia/mfx/encyclopedia.mp3

core/assets/cs/screen/halloffame/mfx/halloffame.mp3

core/assets/cs/screen/loader/mfx/login.mp3

core/assets/cs/screen/statistics/mfx/statistics.mp3

core/assets/de/screen/encyclopedia/mfx/encyclopedia.mp3

core/assets/de/screen/halloffame/mfx/halloffame.mp3

core/assets/de/screen/loader/mfx/login.mp3

core/assets/de/screen/statistics/mfx/statistics.mp3

core/assets/sk/screen/encyclopedia/mfx/encyclopedia.mp3

core/assets/sk/screen/halloffame/mfx/halloffame.mp3

core/assets/sk/screen/loader/mfx/login.mp3

core/assets/sk/screen/statistics/mfx/statistics.mp3

core/external

core/src/cz/nic/tablexia/TablexiaApplication.java

core/src/cz/nic/tablexia/TablexiaStorage.java

core/src/cz/nic/tablexia/game/AbstractTablexiaGame.java

core/src/cz/nic/tablexia/menu/user/UserMenu.java

core/src/cz/nic/tablexia/model/UserDAO.java

core/src/cz/nic/tablexia/model/screen/ScreenDAO.java