Merge branch 'feature-sounds' into 'V3.2.1'

.gitmodules

android/assets/text/application/application_cs.properties

android/assets/text/application/application_de.properties

android/assets/text/application/application_sk.properties

...al/application/mainmenu/button_sound_disabled_overlay.png

...mon/_global/application/mainmenu/button_sound_pressed.png

...n/_global/application/mainmenu/button_sound_unpressed.png

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

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

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

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

...cz/nic/tablexia/game/games/kidnapping/KidnappingGame.java

core/src/cz/nic/tablexia/loader/TablexiaSoundManager.java

.../tablexia/loader/application/ApplicationAtlasManager.java

...c/tablexia/loader/application/ApplicationTextManager.java

core/src/cz/nic/tablexia/menu/AbstractMenu.java

core/src/cz/nic/tablexia/menu/IMenuItem.java

core/src/cz/nic/tablexia/menu/game/GameMenuItemGroup.java

core/src/cz/nic/tablexia/menu/main/MainMenu.java

core/src/cz/nic/tablexia/menu/main/MainMenuDefinition.java