Yet another attempt to make BotanaGiac work in GGW

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28613 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
More debug info

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28614 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
More debug info

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28615 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
BotanaGiac works from file loading, manual edit fro scratch runs to "Exception caught: (TypeError) : Cannot read property 'a' of null" yet

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@28616 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e