Merge pull request #15 from pavedwalden/master

Breath warning working, other overlay text mysteriously invisible
added ocean top fade, updated waves/clouds to 3x art, converted backgrounds to job
re added spawn bubble to game scene
merged with brad's latest with mike's
Merge pull request #17 from michaeltirenin/master

added ocean top fade, updated waves/clouds to 3x art, converted bgs to jpgs
fixed background
Merge pull request #18 from michaeltirenin/master

fixed background
Squid and Shark enemies added
Made the krill tiny