Attempt to fix compilation problem under Mac OS X 10.8


git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27126 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
revert mistake (codebase = null)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27128 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@27130 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e