title: Regex to match . (periods marking end of sentences) but not Mr. (as in Mr. Hopkins)
body: <p>I'm trying to parse a text file into sentences ending in periods, but names like Mr. Hopkins are throwing false alarms on matching for periods.</p>
  
  <p>What regex identifies "."  but not "Mr."</p>
  
  <p>For bonus, I'm also using ! to find end of sentences, so my current Regex is /(!/./ and I'd love an answer that incorporates my !'s too.</p>