TeamDrive functionality

[tonyOreglia]

The branch works for scripts sitting in a Team Drive by adding the parameter supportsTeamDrives to the upload request.

• Moving the google apps script to a team drive causes https://github.com/danthareja/node-google-apps-script to fail uploading
• This is because google expects a parameter supportTeamDrives set to true, see https://developers.google.com/apis-explorer/?hl=en_US#p/drive/v3/drive.files.update and https://developers.google.com/drive/v3/reference/files/update
• https://developers.google.com/drive/v3/web/enable-teamdrives : “If your application isn't affected by the behavioral differences, then you only need to include thesupportsTeamDrives=true query parameter in requests. This is an acknowledgement that the application is aware of behavioral differences of files contained in Team Drives.”
• Adding supportsTeamDrives: true to

  
      .then(function(auth) {
        var drive = google.drive({ version: 'v2', auth: auth });
        var options = {
          fileId: id,
          supportsTeamDrives: true,
          media: {
            mimeType: 'application/vnd.google-apps.script+json',
            body: JSON.stringify({ files: files })
          }
        }; ```
  fixes the problem for a team drive

I've added this as an addition option. I.e.

gapps push --teamdrive 

[lricoy]

Fixes #61

[lricoy]

Code: LGTM but could you please change the README in order to:

• Include the new option under the Docs section for the upload command.
• Add a item in the Common Issues section with your comments about Team Drive
• Fix conflicts :)