Don't change Taskbar text color/texture until relaunch

This will accurately represent when these changes are able to take effect. Currently, the settings don't make any immediate changes or are broken when applied, and this should fix that.

Fixes Open-Shell#602.

Don't change Taskbar text color/texture until relaunch

This will accurately represent when these changes are able to take effect. Currently, the settings don't make any immediate changes or are broken when applied, and this should fix that.

Fixes Open-Shell#602.

Display monochrome icons using color of corresponding text item

Some icons (modern settings, jump-list tasks) are monochrome, basically
they are defined just by alpha channel.
Thus they can be displayed in any color (white is default).

Since these icons are white by default, they look nice on dark
backgrounds. But they are not very visible on light backgrounds.

Thus the idea is to 'colorize' such icon using color of corresponding
text item. That way they will always have proper color.

Fixes Open-Shell#466.

Improve search logging

Don't close menu(s) on certain operations

In several cases we don't want menu(s) to close when an action on menu was
done. For example on drag-n-drop or menu item deletion (where confirmation
dialog is shown).

In such situations `s_bPreventClosing` was set to true (and then back to
false when closing was allowed again).
Though original code honored this variable only in certain situations and
typically (at least on Win10) menus were hidden/closed despite of it.

This patch changes the behavior and menus(s) are not closed when
`s_bPreventClosing` is set to true.
Basically now menu(s) stay visible until there is an action that changes
active window.

Following functionality was also removed because it is not needed now:

* CMenuContainer::HideTemp
* COwnerWindow::OnClear
  WM_CLEAR was sent to the window only by already removed `HideTemp`

SetupHelper: Try to terminate ClassicShell Start Menu (to make upgrad…

…e a bit easier)

During upgrade from ClassicShell we'll try to terminate
ClassicStartMenu.exe as well. So that installer won't complain about files
being in use.

Add information about my clean script

Add information about my clean script

Remove AppVeyor auto build test triggering file

Remove AppVeyor auto build test triggering text file

Update README.md