Login button as a Partial

[mikeumus]

Working with the routes and code from WebWrite's inlinegui, add Mozilla Persona login button to Docport.io homepage.

Reference existing source code: https://github.com/webwrite/inlinegui/search?q=login&ref=cmdform

See Trello Card for full detail:
https://trello.com/c/ohgVnpkb

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