update local playing
update download history-player
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Merge branch 'Alpha.1'

Conflicts:
	melon.xcodeproj/project.xcworkspace/xcuserdata/macbookair.xcuserdatad/UserInterfaceState.xcuserstate
	melon.xcodeproj/xcuserdata/macbookair.xcuserdatad/xcdebugger/Breakpoints.xcbkptlist