Allow admins to create labels that can be dragged around the map as suggestions

[djay]

In order to guide self organisation it would be useful to have text (maybe images) that can inserted and dragged around similar to people.

Options

Either

• we allow two types of objects. Text and hacks. Have some special marker to signify text rather than hack. and only allow admins to create text blocks?

or

• Make all hacks on the map just text.
  • on hover you can see the face of the person who created it
  • allow one person to create multiple hacks (but then how does someone know where that person is?)
  • this would me we don't need to do would be good to show small label (2-3 words) e.g. dylan python #10

@waf @ches what do you think?