some improvements, but textfield does not get focus somehow

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@24808 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Organized imports

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@24809 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Deleted dead code

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@24810 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[giac] should improve cas unit tests

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@24811 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[giac] typo (wrong arguments used for Beta)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@24812 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@24813 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e