videolibrary: add choice to resume video when using "Play using..." (fixes #14358)
videodb: only re-draw progress bar when progress has changed in CleanDatabase()
platinum: lastPlaybackTime is in the "upnp" and not in the "dc" namespace
Merge pull request #4073 from Montellese/videodb_clean_speedup

videodb: speed up CleanDatabase()
Merge pull request #4063 from Montellese/play_using_resume

videolibrary: add choice to resume video when using "Play using..." (fixes #14358)