[giac] fix for map type, probably not used by ggb

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@32778 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[giac] display fraction of gaussian integers with a real denominator

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@32779 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@32780 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e