Filling out the readme

Adding more information to the readme file. Would like to see what software, libraries, gems and stuff being used so could be documented clearly
Replacing ERB with HAML (application layout)
Merge branch 'master' into haml

Conflicts:
	app/views/layouts/application.html.erb
Merge pull request #6 from rhokbrisbane/haml

Replacing ERB with HAML (application layout)
Merge pull request #7 from adam-nelson/patch-1

Filling out the readme
Updating README
Adding useful gems to geocoding.
Adds Address model
Reordering Gemfile
Fixes tests
Merge pull request #8 from rhokbrisbane/geocoding

Address / Geocoding
Merge master into front_end