wrap_view decorator for composing views.
WIP.
Changes required as part of the pytest refactor.
flake8 fixes.
A few test cleanups to use new test structure.
Tests for yoshimi.admin.views.
Autospec mock of page_number.
Fixed typo.
Test for yoshimi.admin.views.index.
Basic style for flash message.
Prevent crash for edit view due to missing template.
Basic "flash" message styling.
Merge branch 'feature/trashui'