Extend the functionality of the window notes

 The window of each note should have two options:
- "Always on top" button
- "Show/hide bottom panel" button

In this way one could use the open notes as handy help at work.
The note window would always be over current application windows and the window will not would take too much space.

Please see images:

http://img59.imageshack.us/img59/2017/qttempa03648.png

after hide panel:
http://img194.imageshack.us/img194/6082/qttempb03648.png