Changed/added icons.

* pixmaps/columnheader.png:
* pixmaps/combobox.png:
* pixmaps/htmlcontainer.png:
* pixmaps/menubar.png:
* pixmaps/pushbutton.png:
* pixmaps/radiobutton.png:
* pixmaps/section.png:
* pixmaps/spinbutton.png:
* pixmaps/statusbar.png:
* pixmaps/terminal.png:
* pixmaps/text.png:
* src/lib/accerciser/icons.py:  Changed/added icons.

svn path=/trunk/; revision=115