[giac] update JUnit tests

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26114 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[giac] added regroup() to Substitute[]

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26115 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
4.9.153.0

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26116 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[giac] updated tests

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26117 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[giac] add normal(regroup()) to ImplicitDerivative[] 

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26118 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[giac] update JUnit tests

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@26120 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e