Merge branch 'milestone_2' into 13_fixes_by_diana

# Conflicts:
#	car/src/main/java/cz/muni/pa165/car/data/repository/CarRepository.java
#	car/src/main/java/cz/muni/pa165/car/service/DriverManagerService.java
#	common_library/src/main/java/cz/muni/pa165/common_library/racecomponents/Car.java
#	common_library/src/main/java/cz/muni/pa165/common_library/racecomponents/Driver.java
#	driver/src/main/java/cz/muni/pa165/driver/service/DriverInitService.java