[giac] Attempt to fix #4496

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35906 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Nice LaTeX for new cond functions

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35907 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Changing giac.js to the latest version in web/kickstart.xml

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35908 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
ClickHandler for whole backPanel

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35909 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e