WOLips: .strings file is not copied to build folder

I'm pretty new to WO development with WOLips so please be patient ;-)

I've converted a WO app from Xcode to WOLips and it runs pretty well.  
Now I've made a few changes in a localized .strings file, but these  
changes do not show up when I launch the app from within Eclipse. So I  
had a closer look at what WOLips is producing:

- When I trigger an ant build the .strings file in my "dist" folder is  
getting updated
- When I simply change stuff and launch the project in Eclipse (=  
incremental build?) I would assume that the app looks for the .strings  
file in the "build" folder because there the files somehow are not  
updated
- When I manually replace the .strings file in the "build" folder the  
app then reflects the changes I've made to these files

I'm sure I'm doing something wrong. I've had a quick look at the ant  
file hoping to find where the stuff is getting copied to the "build"  
folder but did not find anything. So I guess the incremental builds  
don't use this ant file? Where and how can I change the way the  
"build" folder is set up?

Thanks!

Regards,
Will