PR# 5582 estudio doesn't conform to standard X11 clipboard behaviour

All X Window applications have adopted a standard behaviour for clipboards and estudio does not follow this standard.

There should be 2 clipboards in X window applications. The first one should behave exactly as estudio currently does (Ctrl-C to copy). The second clipboard should auto copy text as it is highlighted with the mouse and can be pasted with the middle mouse button. The second clipboard can be operated entirely from the mouse. See freedesktop.org for more information.

The 2 clipboards are independant of each other and should not intefere with each other.

The second clipboard is not provided in estudio.