creating commercial block and adding cookie test link
Merge branch 'master' into commercial-admin-links
adding links to admin page and opening up components page to code
remove test for isSectionTag
Merge pull request #5138 from guardian/commercial-admin-links

Commercial admin links
Merge pull request #5152 from guardian/remove-is-section-test

Remove test for isSectionTag
Merge remote-tracking branch 'origin/master' into top-nav-improvements