[Exporter] Feature Request -extend customization options for property-drawer export

[Thorsten Jolitz <tjolitz@gmail.com>]

Hi List, 

I wonder if customization options for the export of properties drawers
could be extended to something like this

#+begin_src emacs-lisp
  [...]
  :group 'org-export-general
  :version "24.4"
  :package-version '(Org . "8.0")
  :type '(choice
          (const :tag "All properties" t)
          (const :tag "None" nil)
          (repeat :tag "Selected properties"
                  (string :tag "Property name"))
          (list :tag "Ignored properties"
                (const :format "" not)

                (repeat :tag "Specify names of properties to ignore
                during export"
                        :inline t
                        (string :tag "Property name")))
          (regexp :tag "Matched properties"))
#+end_src

with the two additional choices

 - specify a list of ignored properties
 - give a regexp and select only matched properties

I find it easier to specify the properties I do *not* want to export,
because these are often the well-known properties set/used by Org-mode
itself, while the properties I want pto export might be all the others
including those specified by users.

Furthermore, I would like to prefix properties, e.g.

* Header
  :PROPERTIES:
  :foo_prop1: bar1
  :foo_prop2: bar2
  :END:

and then be able to export all properties with a given prefix (matched
by a regexp like "foo_.+").

-- 
cheers,
Thorsten