Added modifcation to mathjax for mathview which interprets ** as ^
-Moved mathjax to a more standard location
-Added the ** to ^ functionality to the problem grader and the past answer viewer.
Merge branch 'doublestar' of https://github.com/goehle/webwork2 into doublestar
Changed mathview so switiching focus closes popups

fixed minor bug with an extra 1 being displayed on Past Answers
oops
Fixing unintended omission
Merge branch 'release/2.8' of http://github.com/openwebwork/webwork2 into doublestar
Another minor change.
Merge pull request #220 from goehle/doublestar

Tweaked MathJax and **