Initial version of "OSMembedded"

Largely based on the canonical Leaflet / Switch2osm example at http://switch2osm.org/using-tiles/getting-started-with-leaflet/

Has been made packagable as a Blackberry WebWorks application.
Currently supports standard-format OSM tiles embedded below
"images" (only two layers included here; generate more via http://switch2osm.org/serving-tiles/manually-building-a-tile-server-12-04/)
and OSM "standard" tiles on the website.

See leaflet_embed.js for details of how to access tiles within the
shared documents folder and on the SD card.

Start location defaults to the centre of Matlock -
it's designed to be changed to something local.