changed banner image (carousel/slide1.jpg)

here is a new banner image.  the new source image couldn't really stretch across the whole banner image, so there is still some of the golf course image in the background.  A slight gradient blends the two images, and the golf course imagery is entirely behind the semitransparent white part of the banner.  If you can think of a better way to pull off this change, let me know and I'll make the adjustments.