Move Name entry

[edemaine]

• [ ] Add to Welcome page
• [ ] Add Room Settings tab on left where it can be set later

(originally part of #87)

[mehtank]

Perhaps in the meantime, better differentiate the user name field vs the meeting name field (or maybe force the meeting name to be double-click to edit or something similar)? Especially I think because of the default upwards facing triangle by the "Your name" accordion, I see many people typing their own names in the wrong field.

[edemaine]

@mehtank Finally got to implementing a clearer differentation in f8cd229 (deployed soon). We'll see if this reduces the number of incorrect meeting title settings!