Closing #3967 - Show IMDB link in download completed notification for Twitter. Link is prepended instead of appending coz  otherwise if the message length > 140 the link would be broken.
Enhanced #3967 - Moved the IMDB link to the end of the message. Also modified the tweet split logic so that the link is never broken.
Merge branch 'feature/append_imdb_link_to_dnld_finish_notif' into develop