#115 Buttons in Select Filters window do not resize properly

[Marek Otahal, CTU Prague]

In the window Filters>Select filters, some buttons (Add Defaults, Move Down) do not resize properly to make all their text visible.
Even if I resize the window in width enough, the "halves" with Available/Selected classes resize, but not the buttons in the middle.

[Marek Otahal, CTU Prague]

Thanks Tobi, I've tested your r6484 commit:
The buttons are visible OK now!, but the left "Available fiters" pane does not resize to it's possible (45% width), please see
http://s12.postimg.org/5stg0f1ct/filters.png
(for deletion: http://postimg.org/delete/4qj9hviji/ )