ActiveAE: use keep alive timer when stream is paused
ActiveAE: add windowing callback for application focus change
settings: fix conflict of <minimum> and <maximum> for CSettingList
Merge pull request #4308 from Montellese/settinglist_minmax_conflict

settings: fix conflict of <minimum> and <maximum> for CSettingList
Merge pull request #4292 from FernetMenta/aefixes

ActiveAE: fix for iOS - suspend sink when paused and app is not focused
paplayer: avoid blocking in OpenFile, call QueueNextFile instead