>> ... ./contrib/lisp/org-wl.el at least in the current master branch. > > This file is not in my org files integrated in emacs. That's why I didn't find > it. Are there many differences between integrated org (emacs git repo), elpa > package and git repository?
I think one can regard the contrib directory as a source of extra modules. With this view the difference between git orgmode and the elpa orgmode package (and also the orgmode that comes with Emacs) is the development that lies between the versions. AFAICS the orgmode elpa package is very close to the HEAD in the orgmode git repo. IIRC the contrib directory is a place for experimentation. The modules might need further testing before they find their way into a release. Further there might be licensing issues. BTW I just found http://orgmode.org/worg/org-contrib/ which has a list of modules of the contrib directory. Best regards, Marco -- http://www.wahlzone.de GPG: 0x49010A040A3AE6F2