pull changes from master to dev on 2014-06-19

This update brings these approved pulls to the dev branch:

* User visible:
  * #1015: hide browser focus outline for dice until user tabs between dice with the keyboard
  * #1016: fix bug in which a player who won a round could sometimes change option die values
  * #1013: description for slow die skill

No database updates.

Once this pull is merged, i will load the changes on dev.buttonweavers.com as part of #217.