As a meeting moderator I want to add a "global note" to the current minutes to help me remember this meeting later-on.

The "Minutes" view should have a "Note" field - with one line of text.
Here a motto like "2016 Bainstorming" or "First Meeting with Mike" or "Workshop at Beach" can be added.

• Place the "Note" field above the participants list
• Global Note shall be editable by moderator
• Global note shall be freezed at finalized meeting
• Global note shall be part of Finalize and Agenda Mails - but only if a string was entered...
• Global note shall be shown as tooltip on each individual minutes "date" in the meeting series view (table list with all meetings")
• Mongo Schema migration needed
• E2E test needed