#4393 style bar on the web.

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35349 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#4457 - GeoLocus has line opacity, and saving opacity added.

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35350 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e