It turns out that the Java Preferences API has a bug that causes it to
remove new lines when importing and exporting preferences files. Since
this is the API that I use for library import and export, this
effectively broke all multiline exports :( FYI the bug is on the bug
This version contains a work around for this bug (though it does make
the xml somewhat more ugly to read).
The error checking when importing malformed xml is now a little more
obvious as well.
This version is now available in the plugin repository as well as on the
wiki home page: http://www.intellij.org/twiki/bin/view/Main/RegexPlugin