Ability to upload a document in Dashboard

See merge request !25

# Conflicts:
#	javascript/src/iframe/viamapi-iframe.js

Dispatch DeviceRevoked event to clients.

See merge request !28

Resolve "Sending emails failing after few(undefined) successful attempts"

Closes #29

See merge request !24

Merge branch '393-allow-end-users-to-check-email-signature-together-with-certificate-chain' into 'master'

Add email and certificates parsing functionality.

See merge request !23

Resolve "Bug with iframe during the email signing"

Closes #23

See merge request !21

Merge branch '11-integrate-collabora-online-in-read-only-mode-in-our-dashboard-get-file-operation-in-wopi-agent' into 'master'

Integrate Collabora online preview with our Dashboard view

Closes dashboard#354

See merge request !20

Fix the issue that browsers that still cache iframe and at the same time don't cache client raise an exception because collabora parameter is not defiled

Resolve "Login - logout shows Not authenticated error randomly"

Closes #25

See merge request !18