Code review comment for lp:~zorba-coders/zorba/bug-867376

There are still some test failures. serialize-direct-uris now throws ZURI errors, which is good, but the test needs to be adapted for that (split the failing cases into separate tests with a .spec file containing the Error: you expect).

More worrying, FOTS/fn-resolve-uri is failing. I'm looking into that one a bit.