Remove unused checked assign

* Checked variable isn’t being used anywhere
Lock & hide display date fields if confirmed date

* When the date is confirmed, the display must be exact — users were
confused when they selected a date, the radio option changed but they
were still able to switch it back to one or two month precision
* Instead, switch to exact, lock the form field and hide the one and
two month options
Move release date fields into partial

* Stop repeating fields in new announcement and new date change forms
Upgrade Bootstrap from 2.0.3 to 2.3.2

* Delete old Bootstrap js and css assets
* Use Bootstrap SASS gem to load assets and to give access to SASS
variables and mixins
* Bootstrap changelog: https://github.com/twbs/bootstrap/releases
Switch back to smaller font size and line height

* Doesn’t address oversized headers
Simplify govspeak help styles

* Remove font-size declaration, was compiling to invalid CSS
* The background is already white
* The width doesn’t need to be constrained
* The pre styles aren’t being used, and it’s grey by default
* Remove the link cursor styles and add an href to the links themselves
(Bootstrap 2.3.2 defaults a target to the value of a link’s href)
Reduce govspeak header sizes

* Bootstrap 2.3.2 has larger headings, scale them back for govspeak so
the aesthetics stay the same
Use list inline styles provided by Bootstrap 2.3.2

* 2.0.3 missed the `inline` feature so it was patched in, this patch
can be removed now
Update `form-large` styles to match new buttons

* Large buttons are a bit bigger, this more specific version needs to
match that
Update Whitehall style guide advice

* Link to guidance about 2.3.2, especially the fluid grid
Don't disable date precision fields

* Disabling fields means their values aren’t passed through
* Presenting a radio button without a choice is confusing, also hide
the radio button when a date is confirmed
Remove margin from h3s in admin document lists

* Bootstrap 2.3.2 adds a default margin to h3s
* In this case it’s undesirable, styles now match 2.0.3
Merge pull request #1663 from alphagov/display-date-refinements

Hide display date fields when date is confirmed
Merge pull request #1669 from alphagov/bootstrap-upgrade

Upgrade Bootstrap to 2.3.2
Correct document filter wording

* Cleanup margins on filter heading
* Stop using “or organisation”, the filter does not use an OR, it’s an
AND. eg Try searching for Robin, then restrict to HMRC.
* This also applies to feature document lists where the partial is
re-used.
Make filter placeholders match style guide

* eg not e.g.
(https://www.gov.uk/design-principles/style-guide/style-points)
Use Bootstrap button styles for filter submit

* Make the action more prominent and consistent with the rest of the
application, also separates it a bit from the reset link below
Correctly pluralise published document counts

* eg 1 published document, 2 published documents
* Remove `strong` tags from around numbers
Use smart quotes in document filter page titles

* http://smartquotesforsmartpeople.com/
Give featured list filters more room

* Match document list filters by using the same sized grid elements
* Remove custom span2 styling