Better fix for axes + grid, removed some dead code

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@25188 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@25189 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[giac] removed false 0,0 root, fix undef=NULL in normal.

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@25190 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Automatic update of propset svn:ignore via for svnignore.txt's by svnignore

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@25191 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@25192 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e