Update to rails 5.0#71

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rposborne wants to merge 9 commits intorubyforgood:masterfrom

rposborne:rails5.1

Commits on May 15, 2017

Updated gems to rails 5.0.
Russell Osborne
committed
Added rails 5.0 construct of ApplicationRecord.
Russell Osborne
committed
Add explicit dependencies for helpers inside of view specs.
Russell Osborne
committed
Added gem defaults for rails 5.0
Russell Osborne
committed
Updated binstubs to rails 5.1 defaults.
Russell Osborne
committed
Updated config files to rails 5.0
Russell Osborne
committed
Added default generated files for rails 5.0 project.
Russell Osborne
committed
Fixed Devise deprecation warnings.
Russell Osborne
committed
Updated controllers to used named arguments over positional arguments.
Russell Osborne
committed