Fixed problem with negative height when resizing Touch

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@24575 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
When new 3D point is created, view3D cursor sets null for its region and its path (used for moving arrows)

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@24576 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
Make sure ImageManager is initialized in Touch

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@24577 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e