Merge pull request #219 from sgryphon/Provisioning

Provisioning files based on teh module element in element.xml files
Fixed Add-SPOField and added new cmdlet
Merge pull request #220 from erwinvanhunen/SPOFieldFixes

Fixed Add-SPOField and added new cmdlet
Latest version of the SharePoint 2013 and SharePoint Online Solution Packs included to the PnP project.
Merge branch 'dev' of https://github.com/officedev/pnp into dev
Better handling of file upload, including check in and publishing