Changes in UI (new Relation Tool)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@34754 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
4.9.279.0

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@34755 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e