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.
* testing/lisp/test-ob-R.el (featurep): Signal missing dependencies
with an error rather than a throw.
* testing/org-test.el (missing-test-dependency): Define the error
signal for missing dependencies.
(org-test-for-executable): Signal missing dependencies with an error
rather than a throw.
(org-test-load): Define an expected failing test for each file with
missing dependencies.
* testing/org-test.el (org-exe-not-found): An error type used to
signal a missing executable
(org-test-for-executable): A function used by test files to throw an
error if a required executable is not present.
(org-test-load): Simply skip files for which the required
executables are not present.
* testing/lisp/test-ob-R.el: Conditional loading.
* testing/lisp/test-ob-awk.el: Conditional loading.
* testing/lisp/test-ob-fortran.el: Conditional loading.