Changing javagiac.dll's to the latest version in desktop/kickstart.xml

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28278 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
prevent user-selections (labels)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28279 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
CAS context menu appears, if the user clicks on the header cell, not only if the user clicks on label or marble. (#2531)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28280 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e