Added Settlement model and GET index endpoint
Removed Cucumber
Removed turbolinks
Added settlements POST create endpoint
Removing not used turbolinks assets
Added ./lib to autoload_paths
Installed and configured Cors middleware

* Added Settings class which loads settings from ENV variables and
config/settings/{env}.yml file
Change amount to decimal
Merge branch 'master' into features/11

Conflicts:
	db/schema.rb
Rebuild balance for project. Create balance for user.