Fix for Pstricks and Asymptote for inequality (#509)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@33450 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
no symbol button when Input Box linked to GeoText

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@33451 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e