muutos
Merge branch 'master' of https://github.com/jhanka/time-table.git

Conflicts:
	src/main/java/fi/juhahanka/timetable/implementations/DefaultTimeTable.java
	src/main/java/fi/juhahanka/timetable/implementations/PersonTimeCell.java
	src/test/java/fi/juhahanka/timetable/implementations/DefaultTimeTableTest.java