LaTeX for 3D vectors

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@34543 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@34544 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Some debugging

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@34545 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e