Modified the size of the thumbnails created by requestHandler.js to 300x300
Added functionality and styling for changing background color between orange and black. Also added styling for single photo view so that each image is centered on screen.
Minor edit to galleryCtrl to remove comment
Modified singlephotoCtrl so that getFinalDimensions takes into account the height of the header and footer of index.html when single photo is resized. Also added styling on singlephoto view for img tag
Added clearfix to gallery.html so that footer on index.html doesn't bump into gallery view
Merge pull request #78 from AltitudeHK/floatSinglePhoto

Centered single photo view with appropriate css styling