merge aebf273f16839e26fae9abe321671fedee9d4930
merging abb5c86a996a2914f1686b3eb6342ed4ccebf9ef
merging 7a619eac0ec13ab01fd78f826c2f13fb3d43ca37
merging bb38f073b51f3d7a644f12b97fd0f7826ad93893
MBST-4754: Fixes to YouTube adapter - removed unused imports
merging 62e06305235ac9b86e8d9220d234518367b112fe
meging 37ddeda30e1748357b636d1f31872072cff797a2
merging 7df1cda27867b3b899523529ef7af44742a39451
Replaced null check with isPresent.
minor typo fixes