Initial post-jam bugfixes (v1.1)

This version fixes a couple of bugs:

• Sound effects for four events (stabbing with dagger, whacking with shovel, pushing into a fountain, breaking a window) did not play.
• A security exception was thrown on Firefox when access to local storage is forbidden by the browser settings.

Each of these bugs really occurs in pre-existing libraries which I had written earlier, and used in this project. The fixes change a few lines of code in those two libraries, and not in any code written during the 7-Day Roguelike Challenge.

There are several other bugfixes and improvements which we plan to make after the judging is complete, however I felt it was worth fixing these two now, as they directly affect the accessibility of the game for reviewers. Reviewers who want to see the game with these two bugs present can play the version without the updated libraries here.