no more test data
test
change addMovie signature
PIK-13 - [DB] Dodanie encji słownikowej "kategoria" i możliwość jej pobrania
PIK-13 - change column category to ManyToOne relation
PIK-13 - add getCategoryByName because of add relation
PIK-13 - change tests because of  add relation
PIK-13 - change example "addTestData" to properly use relation
pull request accepted
update for test
Merge branch 'PIK-13'