Replaced flash with html5, plus a Mac version!

Today is "My Old Crappy Game Appreciation Day"! Or, I'm dusting off haxeflixel to work on some new project, and decided that I should probably do a little update to this small gem I made early in my gamedev bumbling around years. So now that haxeflixel has better support for html5, I replaced the flash version with html5 version and I also added a downloadable for Mac. The windows one will be replaced soon, and I might even export it for linux. So now you will be able to play this totally derivative clone of every shooter ever on multiple platforms! Yay! In all seriousness, it may be totally unoriginally and unappealing, but this game has a special place in my heart, because I made some advanced FX and UI stuff that I had no idea I'd be able to pull off at the time, so I'm pretty proud of this one. Enjoy!