Switch to using govuk_admin_template

* Use SASS rather than LESS
* Use modern versions of formtastic
Begin using admin gem template

* Delete old LESS styles
* Include admin gem styles
* Update application.html to use content_for
Clean up country and countries tables

* Add table-header class for better header contrast
* Add a breadcrumb
* Use page-title class and H1s for page titles
Switch from deprecated commit_button

* Formtastic replaced commit_button with action
Switch to Bootstrap 3 grids

* Replace spanX with col-md-X
* Use fixed container grids rather than fluid (pages are still
responsive)
Fix row wrappers on edit form

* Remove the unnecessary col-md-12 grid column and replace with a row
class
* Remove the unused <div> wrapper
* Add some spacing between tabs and tab content with admin gem class
Put back govspeak size constraint

* Keep the help text limited to 200px
* This isn’t exactly usable, but it’s the status quo
Add breadcrumb to editing country page
jQuery `live` is deprecated, use `on`

* Assign listeners to body and move the selector to the second
parameter of the “on” call
* As recommended by http://api.jquery.com/live/
Update parts accordion to Bootstrap 3

* Bootstrap 3 uses collapsing panels to build an accordion:
http://getbootstrap.com/javascript/#collapse-examples
* Use a `js-` prefixed class as the handle for sortable items
* Upgrade jQuery UI library to work with newer jQuery (1.8.20 to
1.10.4) — only includes ui.sortable, ui.accordion and core
* Use a CSS animation for the yellow fade effect
Bare minimum "related items" fix

* This feature currently times out on preview/live, it’s not
necessarily being used
* These changes bring the form inline with Bootstrap 3
* Cleanup some of the JS to not use IDs
* Minimum necessary to get feature working from a front-end point of
view
Update flash styles to use bootstrap 3 alert
Update fixed workflow buttons to Bootstrap 3
Fix minor update toggle
Increase textarea font-size

* Put back CSS that was removed from the .less file
* Increase the line-height slightly from 21px to 26px for better
readability
Tidy up notes view

* Use bootstrap 3 panels for each version
* Correct spacing between add note button and textarea
Separate fieldsets in edit edition screen

* Split up the fields with a bit of extra margin using gem helper class
Merge pull request #60 from alphagov/govuk_admin_template

Switch to using govuk_admin_template