Fixed view_context priming. Fixes #244, relates to 057ab4e8.

[ihoka]

Fix in 057ab4e resulted in a "NameError: undefined local variable or method `view_context' for Draper::ViewContext:Module".

References:

• Pull request Restore view context patching to Action Mailer #241 changes the way view_context is set up
• Issue helpers are not initialized inside a Resque worker #244: 057ab4e attempts to prime the view_context when not set. However, "current" is a class method, while "view_context" is an instance method.

Added failing spec.

[travisbot]

This pull request fails (merged 8e50556 into b80b691).

[rchampourlier]

This is working for me :) Thanks

[ihoka]

It seems that @travisbot failed due to an infrastructure problem. Can the build be restarted?

Here is the error: http://travis-ci.org/#!/jcasimir/draper/jobs/2117637

[steveklabnik]

Thanks for this. Silly metaprogramming!