Merge branch 'feature-dialog_devel' into 'feature-dialog'

android/assets/atlases/buttons_atlas.pack

android/assets/atlases/buttons_atlas.png

android/assets/atlases/dialog_background.atlas

android/assets/atlases/dialog_background.png

...c/cz/nic/tablexia/screen/halloffame/HallOfFameScreen.java

.../cz/nic/tablexia/util/ui/dialog/AbstractButtonDialog.java

core/src/cz/nic/tablexia/util/ui/dialog/ImageDialog.java

...rc/cz/nic/tablexia/util/ui/dialog/SingleButtonDialog.java

core/src/cz/nic/tablexia/util/ui/dialog/TablexiaDialog.java

core/src/cz/nic/tablexia/util/ui/dialog/TwoButtonDialog.java

...z/nic/tablexia/util/ui/dialog/text/DialogTextContent.java