Save Details window size

[GoogleCodeExporter]

When I double click a class from a jar, it opens the lovely detail view, 
however I'd really love it if the window size could persist between opening 
classes.  I find myself constantly having to expand the size (which is oddly 
hard to do with the type of window picked to use).

Awesome tool otherwise!

Original issue reported on code.google.com by [email protected] on 17 Apr 2014 at 4:30

[depsypher]