Merge pull request #76 from anprak/master

Issue #73 - improvements for the log-in option and user details.
Issue #52 - Switching away from app mutes audio but doesn't pause video fix
Merge pull request #77 from bbondy/master

Issue #52 - Switching away from app mutes audio but doesn't pause video ...
Issue #80 - App crashes on startup due to missing video ID being in the news domain
Issue #82 - Topic tree was moved around and science and ecomonics was split in 2 fixes
Merge pull request #81 from bbondy/master

Issue #80 - App crashes on startup and Issue #82 remote domain refactoring local fixes