* lisp/org-colview.el (org-columns): Rely on `org-entry-get' instead
of `org-entry-properties' in order to handle inheritance properly.
Also limit search to properties actually used as columns instead of
all properties.
Reported-by: Nik Clayton <nik@ngo.org.uk>
<http://permalink.gmane.org/gmane.emacs.orgmode/98091>