Added two csl files missing from tests/.
Revised locator parsing.

* Text.CSL.Reference no longer exports parseLocator.
* Bumped version to 0.5, because of unexported function.
* parseLocator is now used locally in Text.CSL.Pandoc.
* parseLocator now looks for the "short" forms of terms in
  the style's locale(s).  So, in English you'd use "p." or
  "ch."; in German, "S." or "Kap."
* "no." no longer gets parsed as a "note": closes #74.
* Test failure is issue14 test still unexplained.