Simplify title/breadcrumb logic in headers.

It has become clear that we don't actually want to have standalone
service pages. It's also clear that the "service name: tranaction type"
model for page titles (e.g. "Carer's Allowance: applications") is
problematic for many of the 766 transactions.

Accordingly:

* Remove service pages from breadcrumbs, and remove service as a page
  type.
* Amend titles to be a simple attribute on the dashboard, rather than
  being made up of service name and transaction name.
* Update tests.

After this change, we now have four types of dashboard:

* Transaction - for the 766 transactions.
* Other - for one-offs like Housing or Site Activity.
* Department - Currently unused, will list all transactions for
  a department.
* Agency - Ditto for an agency.

Stub changes will follow in a separate commit.

Conflicts:

	spec/server/common/views/spec.module_standalone.js
Update all dashboards for latest design changes.

Remove service breadcrumb, use simple titles.

Conflicts:

	app/support/stagecraft_stub/responses/no-realistic-dashboard.json
	app/support/stagecraft_stub/responses/sorn.json
	app/support/stagecraft_stub/responses/tax-disc.json
Update all modules for latest design changes.

Remove service attribute.

Also make FCO dashboard names consistent - use "Pay" rather than "Payment"
everywhere in modules as well as dashboards.

Conflicts:

	app/support/stagecraft_stub/responses/deposit-foreign-marriage/users-at-each-step.json
	app/support/stagecraft_stub/responses/pay-foreign-marriage-certificates/users-at-each-step.json
	app/support/stagecraft_stub/responses/pay-register-birth-abroad/users-at-each-step.json
	app/support/stagecraft_stub/responses/pay-register-death-abroad/users-at-each-step.json
Stop using camel case in JSON.

We were hoping to change all the JSON to use camel case, but instead
have amended our lint rules not to check this.
Fix tests after dashboard design commits.

We had to cherry-pick some commits after branch confusion: fix up all
the tests afterwards.