Remove upcoming on master to avoid confusion

Content in-place on staging branch
added videos and getting started stuff from staging
typos
ready for videos
Merge branch 'master' of https://github.com/databrary/www
Merge branch 'master' into staging

Conflicts:
	.gitignore
	databrary/input/pages/user-guide/collecting-shareable-data/obtaining-participant-permissions.md
	databrary/input/pages/user-guide/contributing-data/contributing-data.md
	databrary/input/pages/user-guide/contributing-data/sharing-your-data.md
	databrary/input/pages/user-guide/data-reuse/citing-resources.md
	databrary/input/pages/user-guide/data-reuse/data-reuse.md
	databrary/input/pages/user-guide/data-reuse/getting-irb-approval.md
	databrary/input/pages/user-guide/data-reuse/using-data-safely.md
	databrary/input/pages/user-guide/data-reuse/using-databrary-for-reuse.md
	databrary/input/pages/user-guide/getting-authorized/cosigning-agreement.md
	databrary/input/pages/user-guide/getting-authorized/getting-authorized.md
	databrary/input/pages/user-guide/getting-authorized/managing-affiliates.md
	databrary/input/pages/user-guide/getting-authorized/signing-agreement.md
	databrary/input/pages/user-guide/getting-started/sample-intro-videos.md