bugfixes for new gui

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@24920 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[web] make sure eg sen(x), tg(x) displayed in LaTeX

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@24921 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e