Create mission finish popup instead of complete/failed mission popups
Change testing logic of complete/failed popup
Add usage example to the mission finish popup
Change usage example of finish mission popup
Add prototypical using of finish mission popup in the game simulator
Simplify if statement in the game simulator
Add two achievements to the 7b test win mission
Add "url" property to the missions in the mockUserLevels
Add getNextAvailableMission method to the user service
Add proper logic to the complete/failed popup handlers in the game simulator