improve handling of punctuation and camel case

[johnv02139]

I've found some issues with how punctuation is handled.

For some punctuation that is found within a word, it's much better to remove it, than to replace it with a space. For example, "Bob's Burgers" should become "Bobs Burgers", not "Bob s Burgers"

Interestingly I had a problem even with the example given. It works great with "Marvels.Agents.of.S.H.I.E.L.D." but not with "Marvel's Agents of S.H.I.E.L.D."

I think trying for one big do-it-all regex is probably too complicated. I have a proposed fix that handles a few cases one at a time.

[eprenamer]

Resolved in #119