Corrected documentation and mode all String constant.
Fixed conflict 
Merge remote-tracking branch 'origin/develop' into develop

Conflicts:
	src/main/java/com/ita/edu/softserve/web/TransportController.java
add tests
Merge remote-tracking branch 'origin/develop' into develop
fix menu
change paging
Merge remote-tracking branch 'origin/develop' into develop