Added edit + add submission buttons on map
Switched to using an iframe since Enketo URLs are on different domain
Fixed debug hard coded string
Updated the EDIT/ADD shortcuts on Map

* Updated Leaflet version (Draw required version 0.6+)
* Updated Wax version (just to kep it in sync)
* Added Leaflet.Draw to easily add Marker (and later polygons)
* Added Mapbox.js as custom layers were not working anymore on new leaflet.
* Modal is now removed if screen size is too small
* Geocode of marker are sent to Add Submission URL (but Enketo doesn't understand it yet)
* Added a refresh button so user can reload if he added/changed data.
changed URL to .json instead of jsonp to prevent bug in loading source
Changed modals behavior and added feature:

* On click on point, display modal with the data
* modal is now larger, anyway
* data modal contains links to Edit and Delete
* Click on edit replaces modal content with Enketo
* Click on Delete raises confirm modal and delete if needed
merged with master updates
slightly more readable JQ code
Merge pull request #1167 from modilabs/1161_edit_map_data

Merging before it gets too complicated to merge later. No visible regressions. Please open new issues for fixes.