Remove override for footer logo
Remove footer-meta css override
Change bottom bar to match perf. plat. style
Remove overriden CSS style for alpha-tag
Do not cleanup artefact folder before creating a new one

This avoids deletion of the first artefacts when creating multiple ones
Merge pull request #53 from alphagov/fix-footer-logo

Fix footer logo
Merge pull request #55 from alphagov/fix-alpha-label

Fix Performance Alpha tag to match other Performance Platform pages