Adding wallpaperme

First version on wallpaperme. This currently only works on os x
maverick.
Improving wallpaperme
Fixing setup for wallpaperme
Adding support for multiple strings in search
Minor fix in url finding for wallpapers
Improving not found and search string
Fixing setup script for wallpaperme
Merge pull request #1 from hlysig/master-wallpaperme

Master wallpaperme