Added guidance for packaging SharePoint Provider-Hosted app projects to "fixup" the NuGet package reference issue for AppForSharePoint16WebToolkit (non-existant in the public NuGet package registry.
Added guidance for packaging Office 365 API projects to "fixup" the NuGet package reference issue for Azure AD Graph Client (non-existant in the public NuGet package registry) & cleaning the web.config.
Merge pull request #342 from andrewconnell/guidance/pkgProjForDistro

Created guidance for preparing SP Provider-Hosted Apps & Office 365 API projects for distro