From Brian:
WaterNoSplash.png: different from Water.png (which includes the splash)
in that it isn't an animation, and that it consumes the entire frame.

HillGreen.png, ShadesOfDarkGray.png: two new tilesets for volcano.tmx

sndWooHoo.mp3: a new "i've completed the level" sound.  btw, russel, can
you add this to your trigger and the snd class, please.

volcano.tmx:  the new and final map.  this is to be used
L2M1 --> volcano.tmx --> L2R1
. Name should have been L2R1 and the current runner should have been
renamed to L2R2, but this will have to do for now.  russell, could you
please add an additional button to our dev-menu screen. 
. this depends on wendi's updates to the gamescreen and various object
handling classes, so it may be non-functional until then.  also, without
her changes, i haven't been able to test run this yet, so there is a
possibility that it will crash

Level2Maze1.tmx: this changes the exit to play the new sndWooHoo.mp3 and
to enter volcano.tmx rather L2M1

Level1Runner1.tmx: changed the ball's start position for better
recognition by the user.

From Russell:
Adjusting EndingDialog.xml to stop crash.