AV Digestor correctly passes format to LookupContext

ActionView::Digestor now passes arguments correctly to
LookupContext::find method. This makes cache digests
respect the format option correctly.

FixtureFinder in tests also changed to reflect this.
Add support for extra options to `force_ssl`

This commit adds support for passing additional url options along
with a :status option and any of the flash-related options to
`redirect_to` (i.e. :flash, :alert & :notice).

Closes #7570.
Merge pull request #10337 from eimermusic/fix_template_digestor_lookup

Fix ActionView::Digestor to correctly pass format to LookupContext

Conflicts:
	actionpack/CHANGELOG.md
Revert "Merge pull request #10337 from eimermusic/fix_template_digestor_lookup"

This reverts commit b4239622afc4f3f73808fd0c97512f3a534e07dd, reversing
changes made to f99ce3c188f5dde57e2ff63e6a22363c62f0a4cd.

Reason: This broke the build
https://travis-ci.org/rails/rails/jobs/6629894
fixes warning in the AR test suite
ActiveRecord -> Active Record
better document `next_week` functionaility closes #9568