Add functionality to merge non-terminal full stops with adjacent words
Add functionality to merge non-terminal full stops with adjacent words

After paragraph tokenisation (detecting sentences in a given
paragraph), parse-latin now detects these full stops, and
merges them into either the previous (if available), or the next
word.

- Add terminal marker expression to global scope;
- Add mergeRemainingFullStops method.

wooorm/parse-latin