[giac] revert change for solve output

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26000 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Sequence of Cube, Tetrahedron, etc.

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26001 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Use instanceof in Python API

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26002 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@26003 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Don't use isVectorValue for two differen purposes, use shouldEvaluateToGeoVector instead

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26004 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e