changed my weird way of getting the date string
Overlay now displays a list of secrets, when opponent plays one
fixed disabling of secrets display
v0.3.15,

fixed hide secrets option
Merge branch 'master' into feature/games-history+stats

Conflicts:
	Hearthstone Deck Tracker/Config.cs
	Hearthstone Deck Tracker/Hearthstone Deck Tracker.csproj
	Hearthstone Deck Tracker/HsLogReader.cs
	Hearthstone Deck Tracker/MainWindow.xaml.cs