updated Alex Swindler editorial fixes: spelling, quoting, and punctuations
updated version date
Merge pull request #87 from MartyBurns/master

editorial fixes provided by Alex Swindler of NREL. No technical changes.
fixed one more typo on line 385
Merge pull request #88 from MartyBurns/master

fixed one more typo on line 385
Bug Fix: https://www.pivotaltracker.com/story/show/66468534
Merge pull request #89 from jateeter/master

Bug Fix: https://www.pivotaltracker.com/story/show/66468534