org-colview: Fix user properties display

org-colview: Fix user properties display

* contrib/lisp/org-colview-xemacs.el (org-columns-display-here):
(org-columns-display-here-title):
(org-columns-edit-value):
(org-columns-next-allowed-value):
(org-columns-new):
(org-columns-widen):
(org-columns-get-autowidth-alist):
(org-columns-update):
(org-columns-compute):
(org-agenda-columns):
(org-agenda-colview-summarize):
(org-agenda-colview-compute):

* lisp/org-colview.el (org-columns-display-here):
(org-columns-display-here-title):
(org-columns-edit-value):
(org-columns-next-allowed-value):
(org-columns-new):
(org-columns-widen):
(org-columns-get-autowidth-alist):
(org-columns-update):
(org-columns-compute):
(org-agenda-columns):
(org-agenda-colview-summarize):
(org-agenda-colview-compute): Properties are case-insensitive.

Reported-by: Eric S Fraga <e.fraga@ucl.ac.uk>
<http://permalink.gmane.org/gmane.emacs.orgmode/93854>