MINOR - .sln file fix ups courtesy of VS.
MINOR - .sln file fix ups courtesy of VS.

grenade/NuGetGallery_download-count-patch,grenade/NuGetGallery_download-count-patch,mtian/SiteExtensionGallery,mtian/SiteExtensionGallery,ScottShingler/NuGetGallery,projectkudu/SiteExtensionGallery,mtian/SiteExtensionGallery,skbkontur/NuGetGallery,skbkontur/NuGetGallery,JetBrains/ReSharperGallery,skbkontur/NuGetGallery,projectkudu/SiteExtensionGallery,projectkudu/SiteExtensionGallery,grenade/NuGetGallery_download-count-patch,ScottShingler/NuGetGallery,ScottShingler/NuGetGallery,JetBrains/ReSharperGallery,JetBrains/ReSharperGallery