Update rails to version 4.0.9
Update parallel to version 1.2.4
Replace class variables with class constants and instance variables
Remove nested ternary operators
Remove is_ and have_ prefixes from predicate method names
Replace be_falsey with more precise "be false"
Replace be_truthy with more precise "be true"
Avoid using rescue in its modifier form
Update tins to version 1.3.2
Update rails-assets-aexmachina--jquery-qubit to version 0.1.4
Update better_errors to version 2.0.0
Merge pull request #711 from sferik/update

Apply Rails security patch and remove remaining RuboCop TODOs