Fix bad addActionListener() for view projection button.
Add clipping button.

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23346 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Add clipping button.

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@23347 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e