Add new data fixture classes
Update controllers to work with tests
Update entities to work with tests
Update views as a result of changes to controllers/entities
Update MediaBundle controller tests
Update MediaBundle fixture classes
Correct namespace in PageControllerTest.php
Add unique constraint to name property on Speaker entity (necessary as PR#175 makes this property sluggable but also makes the code more testable)
Add missing getId() method to MediaSpeaker and MediaTag entities
Add missing getId() method to LanguageCategory entity
Load additional fixtures in setUp() method of ExploreControllerTest and MediaControllerTest
Replace old seed data file with db dump file produced after patching data in new db schema
Fix merge conflicts
Fix merge conflicts
Merge pull request #181 from Tocacar/issue-180

[WIP] Fixing tests and data fixtures