Added jquery-cookie to make Leaflet.draw values accessable from php.
- Added jquery-cookie library.
- Altered Leaflet.draw to save values into a session cookie as a JSON string.
- TODO: In case of multiple draw maps, key the cookie with the map id.
- TODO: Add the JSON library in case of browsers that don't support JSON.parse and JSON.stringify
- Removed lingering console.log calls.