For Next Vesrion
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-fix some problem for finding the right widget when using multiple lines
-fix a problem with images still zoomed when the mouse leave the panel
-test with the panel on the left or on the right

For Vesrion 2.0
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-drag 'n drop support (with the app-finder for example)
-use more themed icons
-replace xfce_icon_theme_load_category and friends
-add an icon for this plugin
-readd autosetting of nblines?
-any idea?