#000 - Fix tests: Cleanup properly after run.

new_html_spec and edit_html_spec, when run together, used to fail because
the plugin is registered already in the before section of the first test.
#000 - Change order of assertions.

To help to debug this test, if it is flaky. It failed once, but does not fail locally.
Merge pull request #459 from arvindsv/fix_rails_new_tests

Fix rails new tests