Changing javagiac.dll's to the latest version in desktop/kickstart.xml

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30379 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@30380 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
fix SimplificationOfTerms_OrderingOfPowers_0

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30381 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#3808: fix for Cross_3

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30382 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e