Renamed minitest helper to test_helper

[Linuus]

The minitest helper is not called minitest_helper anymore but test_helper instead.
See: https://github.com/blowmage/minitest-rails/wiki/Upgrading-to-0.9

[steveklabnik]

Does this mean we're incompatible with older versions of minit-test rails after this change?

[Linuus]

Well... In version below minitest-rails 0.9 the helper file is called minitest_helper.rb by default. But it can be called anything :) But since 0.9 the default is test_helper.rb just as Rails has it by default with test/unit.

Anyway... I guess we can check the version of minitest-rails and then include either minitest_helper if below 0.9 or test_helper otherwise.

[steveklabnik]

What do you think, @blowmage?

[zerobearing2]

any chance this'll get merged? I'd like to clean up my project DEPRECATION WARNING's. 👍

[steveklabnik]

I still haven't heard from @blowmage about compatibility.

[blowmage]

I would accept this. 👍

[steveklabnik]

Done and done. Thanks. :D