Remove unused CSS

These styles are not used since we killed the HMRC manuals support so remove
Remove redundant class

Since all manual-subsections are collapsible because we removed the hmrc multi-tier manuals, remove all manual-subsection instances and just use js-openable instead

This commit also removes print styles for 'linked-title' which is an HMRC style we are no longer use
Merge pull request #95 from alphagov/unify-shared-styles

Unify shared styles
Remove unused .subsection-collection .title style
Improve HTML

This commit:
- Removes the sentence explaining how to use the updates. Pretty sure that it is self explanatory especially in the wider context of the manual) and so we don't need this sentence to explain.
- Changes the tags used to mark up the notes. The original markup is good for longer explanations of changes but in reality change notes are rarely over four words long so using headers and paragraphs is a bit too much. This change employs a definition list instead. Based on even more mature projects with more comprehensive change notes I think this design will still work.
Fix up styles for updates page

Given the flexible and highly changable length of the change discriptions and the affected page names, in terms of layouts this is about as nice as we're going to get while still accommodating all text lengths. This commit adds some styling for updates lists and removes some (now unused) styles for the old updates presentation.
Reverse order of change notes

SO that the most recent notes are at the top of the document reverse the order of them.
Merge pull request #96 from alphagov/improve-updates-page

Improve updates page
Bump the visual importance of the date

I accidentally removed all the styling for this, add the sizing fix back in.
Merge pull request #97 from alphagov/make-updates-title-bigger

Bump the visual importance of the date
Fix issue with phantom JS loading assets

phantomjs defaults to using SSLv3, which has now been disabled
everywhere. The protocol used can be changed with an option:

--ssl-protocol= Sets the SSL protocol
(supported protocols: 'SSLv3' (default), 'SSLv2', 'TLSv1', 'any')
This PR makes poltergeist set this option when invoking phantomjs.
Merge pull request #98 from alphagov/fix-issue-with-phantom-js-loading-assets

Fix issue with phantom JS loading assets
Remove breadcrumb link to contents on contents page

It is confusing for users if we have a breadcrumb linking to the page they are currently on.
Merge pull request #99 from alphagov/remove-contents-link-from-index

Remove breadcrumb link to contents on contents page
Apply standard GOV.UK breadcrumb styling

Makes sense for the breadcrumbs to be consistent with the existing GOV.UK style
Change ALPHA label to BETA

Because for manuals published on GOV.UK, the content is accurate and complete.
Merge pull request #101 from alphagov/change-alpha-to-beta

Change ALPHA label to BETA
Merge pull request #100 from alphagov/breadcrumb-styling

Apply standard GOV.UK breadcrumb styling