Commented out add00.  This was here for a reason, but what?

For now we remove it, to avoid a large class of errors in which
we get 00001 instead of 1.
Fixed pattern matching of arguments in 'test-citeproc'.
Rewrite for clarity.
Util: Add trimr, triml.
Only trimr markdown output.
Added TODO comment.
Text.CSL.Eval.Output: fixed bug in toStr.

This should restore the missing spaces in suffixes and prefixes.
Minor rewrites for clarity and efficiency.
Custom Show instance for Formatting.

This makes debug output considerably less noisy.
Proc:  Fixed reversing on suffix code.