Player update

This week we've updated in the player:

1. A minor change has been introduced to the Media Recorder module – it now "says" Recording stopped instead of Stop recording in Text-to-Speech mode. The earlier version might have been slightly misleading.
2. TTS and Keyboard Navigation support has been added to the Crossword module. The updated list of all supported modules is in our documentation.
3. In the recently updated functionality of the Paragraph module – the property "Show Answers", which accepts a list of multiple show answers that can be presented in the Gradual Show Answers mode – there was an unnecessary line break added after each answer, which has now been fixed.
4. The Paragraph eKeyboard module has been updated with the same property that was already present in the Paragraph module, which is the "Placeholder text" – with the same functionality behind it.