Scroll contents with page

Use the stickAtTopWhenScrolling JavaScript from the frontend_toolkit to
make the contents stick when you scroll.

Added a `js-footer` class to the footer to stop the contents from
scrolling over the footer. Added the sticky styles.
Merge pull request #13 from alphagov/scroll-with-page

Scroll contents with page
Override single column styles for ie6
Remove sticky sidebar from ie6

- Add an ieVersion variable so we can switch off bits of javascript for ie6.
- Seemed pertinent to set ieVersion for 7 and 8 as well though we are only using it for 6 right now.
Merge pull request #14 from alphagov/ie-6-fixes

Ie 6 fixes
Merge pull request #15 from alphagov/page-title

Use the case name in the page title
Remove padding on the bottom of nested lists

This commit sets the padding for child ols in the side-nav. This commit also contains some one time whitespace fixes.
Remove links from show page

Unlinking the metadata here so the app can stand by itself.
Merge pull request #16 from alphagov/remove-links

Remove links from show page
Merge pull request #17 from alphagov/nested-list-padding

Remove padding on the bottom of nested lists
Add Logstasher

With this Gem we can dump the Rails logs into logstash and make them
available via Kibana.
Use a presenter for document
Flatten details and set up delegators
Add metadata methods to document presenter
Add a reject for blank metadata values
Remove beta banner
Merge pull request #20 from alphagov/remove-beta-banner

Remove beta banner
Remove robots block
Merge pull request #18 from alphagov/add-logstasher

Add Logstasher
Enable Logstasher in production

This was missed in #18