Fix context not activated when created (now shader and renderimage works without having to creat a window or a context explicitly). git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/branches/sfml2@1800 4e206d99-4929-0410-ac5d-dfc041789085
Fix context not activated when created (now shader and renderimage works without having to creat a window or a context explicitly). git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/branches/sfml2@1800 4e206d99-4929-0410-ac5d-dfc041789085