Add missing blank lines, clean up the doc string and remove white spaces at the end of the lines in reflistprop.
Add missing blank lines, clean up the doc string and remove white spaces at the end of the lines in reflistprop.

Patch by: Pawel Solyga
Review by: to-be-reviewed

--HG--
extra : convert_revision : svn%3A32761e7d-7263-4528-b7be-7235b26367ec/trunk%40774

rhyolight/nupic.son,rhyolight/nupic.son,rhyolight/nupic.son