Fixed button description typo
Merge branch 'VesaJ'
Moving over the Office 365 API console demo app used during the pre TR19 hack-a-thon
Added readme file in md format
15 version of the Tenant.dll included

Microsoft.Online.SharePoint.Client.Tenant.dll for on-prem (15 version)
included in the assemblies folder.
Merge remote-tracking branch 'origin/dev'
Updated welcome wiki page with new Q&A topics
Merge remote-tracking branch 'origin/dev'