Ticket #3662: fixed embeddedSize problem (this was not a general one)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@29121 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#3631 continued, develop sync calls from Web too

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@29123 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Ticket #3662: one more check was needed for hasEuclidianView2

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@29124 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e