PUBLISHED!, main menu tweaks, terrain tweaks, high grass tweaks, and more…

- Published to android market!
- Tweaked main menu a little so now there is a backdrop as well as a
credits option. Users can see what version number it is as well as
credits for the game.
- Tweaked terrain a little to optimize it. Deleted a few textures used
to paint terrain because I found out that if you have more then 4
textures it produces a second draw call. Got ride of some so there is
only one draw call. Tweak settings like pixel error and such so the
terrain is at its fastest running rate.
- Changed high grass to regular terrain grass. So an improvement in
fps. Before had to render all of these high grass models, no longer
have to do so. Can't add too much grass otherwise it takes a
performance hit.
- Tweaked lighting just a tad so it closely relates to where the sun is.
- Tweaked duck and goose flying time so that they are a tad slower.
Originally 40 seconds to complete spline path, now they are 45 seconds.
- Fixed continue bug in game over sequence
- Tweaked compass so that when user rotates it android only gives yaw
values to the hundreth value, 0.01f, instead of some long float like
0.1231231231f. I as well changed the final degree value to an in so the
camera is less gittery.
- Added audio mute to player prefs so when the user resets the game
whatever the mute was set at before remains. Mute is automatically set
to false if game is completed quit/shutdown.
- Changed pause button to be where the timer is located.

##### Notes #####
- Tada sound can be amplified up a little
- Tweak camera rotation a little more so it is a little less gittery
- Add a calibration in pause menu (just call coundown again basically
and add a quick animation so user rotates to start position)
- Add a tutorial scene so users know what buttons are and what to shoot
and what not to shoot. Should be guiTextures and allow the user to be
able to skip tutorials within 3 seconds (kind of how youtube adds ads
to their videos and allow user to skip)
- Add a fade to the beginning of the game
some error with github, ignore this follow previous push