migration proposal for changes from legals => 4.0.1
4516, 4517, trimwhitespace flag for compiled datasets risk: modest, it touches the code which initializes datasets benefit: minor , doubt many people are relying on this 4537: fix for lzenv.bat in windows benefit: modest makes lzc work in Windows , (workaround is to use cygwin) risk: low, only affects one file, which is broken now 4541: fix for basewindow DHTML benefit: modest, fixes a bug for case when people delete windows in DHTML risk: low, simple local changes, and it's a component
