Success! Looks like we've fixed this one. According to our records the fix was applied for
a bug in our system
a recent build.
Code style in ColumnConfig
In com.sencha.gxt.widget.core.client.grid.ColumnConfig constructors argument is has name "name", but sets "header", as method setHeader(). Not nice. :-)
Thanks, we'll try to be better at hiding our confusing API details in the future.
Seriously though, the change is in SVN, along with a javadoc update that should make the different between the two constructors with header in them clearer. This change will be available in the next release.
The changes should now be in beta 4. You should now notice these changes when your IDE's code completion kicks in.