Build 180318 (alpha)

• Feature ‘Extend foreground colors’ was removed.
• Don’t be CPU consuming in background.
• conemu#1456: VS Extension fails to start ConEmu with error ‘Can’t create new virtual console!’.
• conemu#1467: Let hotkey ‘Create new window’ take into account confirmation setting.
• conemu#1478: Fix for unexpected error during ConEmu -UpdateJumpList -Exit.
• conemu#1402: Add some more tricks to find WinAPI problems: ConEmuC -CheckUnicode.
• conemu#1480: Update wslbridge to version 0.2.4.