server side ratings
added rating services
Merge branch 'master' of https://github.com/ComputerScienceStudents/Workout into 70737030Możliwosc_oceny_programu_treningowego
added ratings to views
merge with master
ratings
Merge pull request #20 from ComputerScienceStudents/70737030Możliwosc_oceny_programu_treningowego

70737030 możliwosc oceny programu treningowego