Ticket #3485: at first, don't call setPerspectives in case there will be only one Graphics view

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27191 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Ticket #3485: I've forgotten to remove my private debug messages

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@27192 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e