Cleaning up the payatron_4000 library class.
All tests are passing. Cleaned up the deploy configuration.
Fixed Settings method spelling mistake in the production config.
Removed drop_table 'country_taxes' from the migration pool to prevent a server error.
Removed rogue variable reference to category in the zone index page.
Changed the current_tax_rate method to be more flexible. Defaults to 20%.
Added sku and tags fields to the search scope for products.
Refactored how the settings and tax_rate global objects are handled into a separate library class. This can extended for further use. Cleaned up several specs with the use of let(:variable). Completed the single product functionality to remove attribute types and select tags on products where required.
Removed redundant git files and cleaned up several files.
Merge branch 'master' into gimsonrobotics. Fixed conflicts.

Conflicts:
	app/models/product.rb
	db/development.sqlite3
	db/schema.rb
	db/test.sqlite3