[Seaside] Displaying progress on a web page

[Ramon Leon]

Small correction, 
 
 I use it like so...
 
 html div 
     with: 'Searching...' 
     waitMax: 30 seconds 
     forWork: [self getDataFromLongRunningProcess] 
     thenRender:[:r :value | r text: value]

I just noticed that with expects a string, not a block that can be rendered
in.