Fix `org-refile-get-targets'
* lisp/org.el (org-refile-get-targets): Fix bug when using
`org-refile-target-verify-function'. Improve speed.
(org-olpa): Remove variable.
(org-outline-path-cache): New variable.
(org--get-outline-path-1): New function.
(org-get-outline-path): Use new function. This fixes return value when
cache is used and calls are not in the same path.
* testing/lisp/test-org.el (test-org/get-outline-path): New test.
Reported-by: Florian Adamsky <fa-org-mode@haktar.org>
<http://permalink.gmane.org/gmane.emacs.orgmode/104829>