Intro-scene and final game scene added

The update 0.6.0 adds an intro scene shown at the beginning of the game. You can change preferences like sound, graphics or language settings. It is lightly animated.
In addition, a final scene is added (no screenshot provided :). Here, you liege rates your success and has some kind words for your efforts :)

When selecting a dialog, the action bar at the bottom as well as the minimap now are hidden. This was done to provide a more clean look of the game. Escape now leaves dialogs.

Next up is character creation - fully creating a character in blender and exporting it into unity.