[giac] Fix for gcd GMP bug 

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@24851 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[giac] express snedecor_cdf in terms of Beta

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@24852 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@24853 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[giac] bugfix: parsing of decimals wasn't using MySpecialDouble (correctly)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@24854 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e