Broken org-protocol tests

[Maxim Nikulin]

Hi,

Is there any reason why org-protocol tests are not run by default? Is 
dependency on server.el considered as too heavy for routine testing? I 
know, the tests are broken, but I suspect, it is a consequence that 
additional efforts are required to run them.

Almost unrelated note: either I missed something or org tests depend on 
a couple of things unavailable in emacs-25, e.g. 
temporary-file-directory function.