Bump slimmer
Style search results
Fix breadcrumb width
Upgrade slimmer

Need to set a slimmer header to set the search form action to the
correct value.
Merge branch 'add-service-manual-search' of github.com:alphagov/design-principles into add-service-manual-search
Override service manual search action path

Update paths elsewhere
Merge pull request #29 from alphagov/add-service-manual-search

Add service manual search