The origin now revolves around the center of the texture

Change the values passed into getOrigin in Sprite.drawTexture (both
overloads) to change this behavior.
Sprites now draw "from the center"

Done by offsetting the camera coordinates for each sprite by half of the
texture width and height within the Sprite.drawTexture() methods.
Revert "Sprites now draw "from the center""

This reverts commit 1c7bbe793991f2e2e1307dec8d814d63e7d0d156.
Fixed minor merge conflict