Add functionality for denying a comma as first token in sentence (closes #15)
Add functionality for denying a comma as first token in sentence (closes #15)

- Move mergePrefixExceptions and mergeAffixExceptions later in
  the modifier queue;
- Fix dumb single- and double quotes to be included in the
  previous sentence, by adding these marks to
  EXPRESSION_AFFIX_PUNCTUATION.

wooorm/parse-latin