Avoid dialog initialization

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35853 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
avoid new with CoordMatrix4x4.Identity()

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35854 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
[web3D] receiving focus -> key events

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35855 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e