* getCapturingThreshold() for 3D input
* move arrows bigger for bigger points

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@37611 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Fix for #4741

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@37612 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
5.0.32.0

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@37613 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e