Adding population data

Closes https://github.com/ukodi-training/ODP-Group5/issues/3 (add data)
Added map section

Closes https://github.com/ukodi-training/ODP-Group5/issues/5
Updating configuration file

This closes issue https://github.com/ukodi-training/ODP-Group5/issues/1
Update to config.js
Fixes data location

https://github.com/ukodi-training/ODP-Group5/issues/1
Back fix

https://github.com/ukodi-training/ODP-Group5/issues/1
Merge pull request #6 from Cimeon/gh-pages

Map for milestone 1