* Display podcast episode information.
Add an EpisodeInfoWidget with title, author, duration, date, and description fields. Include this in the PodcastInfoDialog. If exactly one episode is selected, then show both the podcast and episode widgets and display the episode's URL. Otherwise, hide the episode widget and follow the existing behavior. Note that the desription field for the EpisodeInfoWidget uses the QLabel and does not currently download embedded images.
Add an always_show_hours option to the PrettyTime methods to include hours in formatting even if the field is zero. This is less ambiguious in some cases where duration is displayed.
* Apply patch from automated formatter test.
* bring in playlist updates for potential fix
* define signal to handle organise playlist bugs
* work in progress
* fix wrong signal/slot
* next push forward on handling new song creation
* Reorganize signals/slots; still need to figure out why not all signals are being handled
* Get playlists to work when they're in memory
* more changes to playlist updates
* revert unnecessary changes and finalize fix
After setting QDateTime to invalid state, it's saved into database as uint,
with then is read from database as a valid date. To make behaviour consistent, this change is needed.
If date is 4294967295, then it's an invalid one.