#49 Window state should be set to "Minimized" while in systray

[Crebain]

Window state should be set to "Minimized" when
minimizing to system tray (with right-click). This way,
Windows XP and 2003 swaps out most of the
application's working memory set, freeing up physical
memory.

[Alexander Avdonin]

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Minimizing to tray works so:
1) check if window can be minimized
2) minimize window
3) hide window
4) add tray icon

So window is really minimized before hiding! Cheers.