* Panel widget: History list button changed from v to [^]
* Change drawing of history control elements for panel. Now if panel is active, show in reverse color just panel path.
* Add reaction on mouse click on [] chars at top of panel
* Added call of repaint_screen() function for correctly show panels content after click by mouse on 'hidden files' indicator.
Signed-off-by: Slava Zanko <slavazanko@gmail.com>
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