[Update]               added option to hide the question if you would like to update


git-svn-id: http://svn.code.sf.net/p/megui/code@2491 a21b8521-4df1-4ed3-b48c-cff5bc73dcb3
[Update]               fixed a crash on some systems without visual styles (regression of 2490)


git-svn-id: http://svn.code.sf.net/p/megui/code@2492 a21b8521-4df1-4ed3-b48c-cff5bc73dcb3