Add comments noting that
- We might want to do something different when the bookmark button is
pressed.
- The display filters (dfilters file) and gui.filter_expressions
preferences should be merged.
- Many buttons on Qt4 + OS X + unifiedTitleAndToolBarOnMac makes the
main window really wide.
Add a qstring_strdup convenience routine. Add "disabled" display filter
edit icons. Fix up whitespace and descriptions in a couple of places.
svn path=/trunk/; revision=47522
Gerald Combs