desktop project and settings reverted

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30034 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
#3827:use the correct language for GeoGebraTube and forum as well

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@30036 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e