This fixes a wrong merge that should not have happened:
commit 7e903a merges the master branch into the maint branch,
while we really want to keep the maint branch a bugfix-only
branch.
This commit reverts back the maint branch to its state before
merging the master branch. From there, we will fix remaining
problems with the maint branch (e.g. copyright issues) then
release this maint branch as Org-mode 7.8.05.
Additionally, replace one
(or (org-mode-p) (derived-mode-p 'org-mode))
with
(derived-mode-p 'org-mode)
cause that is reflexive anyway (returns true, if the current mode is
org-mode).
Delete one check testing for org-mode or org derived mode
org-registry-assoc-all removed matching links from the registry. This meant
subsequent calls with the same parameters would return nothing.
Add another function for finding entries in the register, which used find-if to
get entries satisfying a predicate.
