Changes on titler:

Changes on titler:
* Added separator between the tools (select, text, etc) and the open/save buttons to avoid confusion
* Added empty toolbar which is shown when the selected item doesn't have special properties (like text size)
* Fixed toolbar not being active after adding a text item (only after selecting it with the mouse)
* Added methods to show/enable toolbars to avoid mistakes in the source code.

svn path=/trunk/kdenlive/; revision=3638