move margin from bottom to top

rebalance the whitespace with the header
Merge pull request #510 from alphagov/rebalance-whitespace-on-list-items

move margin from bottom to top
Add margin to top of document footer
Merge pull request #511 from alphagov/document-footer-spacing

Add margin to top of document footer
Fix typo in the component metadata docs: 'relvent' -> 'relevant'
Merge pull request #512 from alphagov/fix_typo_in_component_metadata_docs

Fix typo in the component metadata docs: 'relvent' -> 'relevant'
Fix some typos in the component documentation
Merge pull request #513 from alphagov/component-documentation-fixes

Fix some typos in the component documentation
Make display of "Published" optional for footer metadata

For specialist documents we're switching to using only one of "Updated" or
"Published" dates depending on which edition we're showing to a user.
Add min-height to ensure second column is always in the middle
Merge pull request #514 from kalleth/make-published-optional

Make display of "Published" optional for footer metadata