update!

Cool SL Viewer v1.19.0.5 release 51 (stable, legacy renderer)
Cool SL Viewer v1.21.6.0 release 18 (stable, Windlight renderer)
Cool SL Viewer v1.22.10.0 release 3 (experimental)

Updated: compatibility patch (for v1.19.0.5 with future SL servers), allow to increase the network bandwidth beyond the 1500Kbps limit, and have got an updated OpenSim grids list (with per-grid login screens and an editable grids list (in grids.xml) for v1.2x viewers).

Enjoy !