SSF : Overlays on the map; project_project controller changes

* Adding hazard, theme, countries to the deployments form
* Permission to anonymous to create task, contributor role
* Deployments, members overlay on the map
* Inline login form
These aren't Sunflower deployments but Sahana deployments.
We /might/ wish to track the Event Type they've been deployed in response to...not high on my personal priority list but I'm OK about tracking it. (I'm not sure what use it would get put to beyond simply a 'report')
Likewise for themes, how many deployments are for 'DRR' vs 'Response' etc This has more relevance to the direction that we design the system for....although of course resources speak loudest. Paying people or motivating volunteers to do something will be what makes things happen... a vague 'x deployments (of what type? How large an impact, etc, etc) in sector x vs y deployments in sector y' /might/ provide a vague steer, but not significantly I don't think.....still at least there's the possibility of it being used beyond just a 'report'